Home / 711,068.02-981,267.12-388,774.69

Finding the Fourth Proportional to 711,068.02, 981,267.12 and 388,774.69

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Solution

The fourth proportional to 711,068.02, 981,267.12 and 388,774.69 is: 536,505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,068.02 : 981,267.12 = 388,774.69 : x
  2. Step 2: Convert to fraction form
    711,068.02/981,267.12 = 388,774.69/x
  3. Step 3: Cross multiply
    711,068.02x = 981,267.12 × 388,774.69
  4. Step 4: Simplify right side
    711,068.02x = 381,491,817,932.03
  5. Step 5: Solve for x
    x = 381,491,817,932.03/711,068.02
  6. Step 6: Final answer
    x = 536,505.38

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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.