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Finding the Fourth Proportional to 605,423.60, 908,135.40 and 510,945.20

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Solution

The fourth proportional to 605,423.60, 908,135.40 and 510,945.20 is: 766,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,423.60 : 908,135.40 = 510,945.20 : x
  2. Step 2: Convert to fraction form
    605,423.60/908,135.40 = 510,945.20/x
  3. Step 3: Cross multiply
    605,423.60x = 908,135.40 × 510,945.20
  4. Step 4: Simplify right side
    605,423.60x = 464,007,423,580.08
  5. Step 5: Solve for x
    x = 464,007,423,580.08/605,423.60
  6. Step 6: Final answer
    x = 766,417.80

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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.