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Finding the Fourth Proportional to 628,003.70, 942,005.55 and 606,352.40

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Solution

The fourth proportional to 628,003.70, 942,005.55 and 606,352.40 is: 909,528.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,003.70 : 942,005.55 = 606,352.40 : x
  2. Step 2: Convert to fraction form
    628,003.70/942,005.55 = 606,352.40/x
  3. Step 3: Cross multiply
    628,003.70x = 942,005.55 × 606,352.40
  4. Step 4: Simplify right side
    628,003.70x = 571,187,326,055.82
  5. Step 5: Solve for x
    x = 571,187,326,055.82/628,003.70
  6. Step 6: Final answer
    x = 909,528.60

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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.