Home / 945,439.64-1,304,715.02-515,721.68

Finding the Fourth Proportional to 945,439.64, 1,304,715.02 and 515,721.68

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Solution

The fourth proportional to 945,439.64, 1,304,715.02 and 515,721.68 is: 711,700.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,439.64 : 1,304,715.02 = 515,721.68 : x
  2. Step 2: Convert to fraction form
    945,439.64/1,304,715.02 = 515,721.68/x
  3. Step 3: Cross multiply
    945,439.64x = 1,304,715.02 × 515,721.68
  4. Step 4: Simplify right side
    945,439.64x = 672,869,822,035.63
  5. Step 5: Solve for x
    x = 672,869,822,035.63/945,439.64
  6. Step 6: Final answer
    x = 711,700.46

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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.