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Finding the Fourth Proportional to 605,233.80, 907,850.70 and 402,280.20

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Solution

The fourth proportional to 605,233.80, 907,850.70 and 402,280.20 is: 603,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,233.80 : 907,850.70 = 402,280.20 : x
  2. Step 2: Convert to fraction form
    605,233.80/907,850.70 = 402,280.20/x
  3. Step 3: Cross multiply
    605,233.80x = 907,850.70 × 402,280.20
  4. Step 4: Simplify right side
    605,233.80x = 365,210,361,166.14
  5. Step 5: Solve for x
    x = 365,210,361,166.14/605,233.80
  6. Step 6: Final answer
    x = 603,420.30

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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.