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Finding the Fourth Proportional to 605,152.40, 907,728.60 and 406,086.80

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Solution

The fourth proportional to 605,152.40, 907,728.60 and 406,086.80 is: 609,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,152.40 : 907,728.60 = 406,086.80 : x
  2. Step 2: Convert to fraction form
    605,152.40/907,728.60 = 406,086.80/x
  3. Step 3: Cross multiply
    605,152.40x = 907,728.60 × 406,086.80
  4. Step 4: Simplify right side
    605,152.40x = 368,616,602,442.48
  5. Step 5: Solve for x
    x = 368,616,602,442.48/605,152.40
  6. Step 6: Final answer
    x = 609,130.20

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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.