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Finding the Fourth Proportional to 616,744.80, 924,679.80 and 279,946.80

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Solution

The fourth proportional to 616,744.80, 924,679.80 and 279,946.80 is: 419,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,744.80 : 924,679.80 = 279,946.80 : x
  2. Step 2: Convert to fraction form
    616,744.80/924,679.80 = 279,946.80/x
  3. Step 3: Cross multiply
    616,744.80x = 924,679.80 × 279,946.80
  4. Step 4: Simplify right side
    616,744.80x = 258,861,151,034.64
  5. Step 5: Solve for x
    x = 258,861,151,034.64/616,744.80
  6. Step 6: Final answer
    x = 419,721.66

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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.