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Finding the Fourth Proportional to 945,560, 1,304,875.96 and 515,849.20

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Solution

The fourth proportional to 945,560, 1,304,875.96 and 515,849.20 is: 711,873.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,560 : 1,304,875.96 = 515,849.20 : x
  2. Step 2: Convert to fraction form
    945,560/1,304,875.96 = 515,849.20/x
  3. Step 3: Cross multiply
    945,560x = 1,304,875.96 × 515,849.20
  4. Step 4: Simplify right side
    945,560x = 673,119,220,065.23
  5. Step 5: Solve for x
    x = 673,119,220,065.23/945,560
  6. Step 6: Final answer
    x = 711,873.62

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1.5x scale

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.