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Finding the Fourth Proportional to 671,389.40, 924,752.42 and 516,043.62

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Solution

The fourth proportional to 671,389.40, 924,752.42 and 516,043.62 is: 710,783.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,389.40 : 924,752.42 = 516,043.62 : x
  2. Step 2: Convert to fraction form
    671,389.40/924,752.42 = 516,043.62/x
  3. Step 3: Cross multiply
    671,389.40x = 924,752.42 × 516,043.62
  4. Step 4: Simplify right side
    671,389.40x = 477,212,586,420.56
  5. Step 5: Solve for x
    x = 477,212,586,420.56/671,389.40
  6. Step 6: Final answer
    x = 710,783.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.