Home / 711,270.77-981,533.76-388,973.95

Finding the Fourth Proportional to 711,270.77, 981,533.76 and 388,973.95

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Solution

The fourth proportional to 711,270.77, 981,533.76 and 388,973.95 is: 536,773.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,270.77 : 981,533.76 = 388,973.95 : x
  2. Step 2: Convert to fraction form
    711,270.77/981,533.76 = 388,973.95/x
  3. Step 3: Cross multiply
    711,270.77x = 981,533.76 × 388,973.95
  4. Step 4: Simplify right side
    711,270.77x = 381,791,062,508.04
  5. Step 5: Solve for x
    x = 381,791,062,508.04/711,270.77
  6. Step 6: Final answer
    x = 536,773.16

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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.