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Finding the Fourth Proportional to 628,308.40, 942,462.60 and 628,308.40

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Solution

The fourth proportional to 628,308.40, 942,462.60 and 628,308.40 is: 942,462.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,308.40 : 942,462.60 = 628,308.40 : x
  2. Step 2: Convert to fraction form
    628,308.40/942,462.60 = 628,308.40/x
  3. Step 3: Cross multiply
    628,308.40x = 942,462.60 × 628,308.40
  4. Step 4: Simplify right side
    628,308.40x = 592,157,168,265.84
  5. Step 5: Solve for x
    x = 592,157,168,265.84/628,308.40
  6. Step 6: Final answer
    x = 942,462.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.