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Finding the Fourth Proportional to 628,323.40, 942,485.10 and 362,602.90

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Solution

The fourth proportional to 628,323.40, 942,485.10 and 362,602.90 is: 543,904.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,323.40 : 942,485.10 = 362,602.90 : x
  2. Step 2: Convert to fraction form
    628,323.40/942,485.10 = 362,602.90/x
  3. Step 3: Cross multiply
    628,323.40x = 942,485.10 × 362,602.90
  4. Step 4: Simplify right side
    628,323.40x = 341,747,830,466.79
  5. Step 5: Solve for x
    x = 341,747,830,466.79/628,323.40
  6. Step 6: Final answer
    x = 543,904.35

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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.