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Finding the Fourth Proportional to 616,442.40, 924,663.60 and 518,464.80

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Solution

The fourth proportional to 616,442.40, 924,663.60 and 518,464.80 is: 777,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,442.40 : 924,663.60 = 518,464.80 : x
  2. Step 2: Convert to fraction form
    616,442.40/924,663.60 = 518,464.80/x
  3. Step 3: Cross multiply
    616,442.40x = 924,663.60 × 518,464.80
  4. Step 4: Simplify right side
    616,442.40x = 479,405,528,441.28
  5. Step 5: Solve for x
    x = 479,405,528,441.28/616,442.40
  6. Step 6: Final answer
    x = 777,697.20

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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.