Home / 711,025,428.08-981,216,526.20-397,764,874.64

Finding the Fourth Proportional to 711,025,428.08, 981,216,526.20 and 397,764,874.64

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Solution

The fourth proportional to 711,025,428.08, 981,216,526.20 and 397,764,874.64 is: 548,916,330.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,025,428.08 : 981,216,526.20 = 397,764,874.64 : x
  2. Step 2: Convert to fraction form
    711,025,428.08/981,216,526.20 = 397,764,874.64/x
  3. Step 3: Cross multiply
    711,025,428.08x = 981,216,526.20 × 397,764,874.64
  4. Step 4: Simplify right side
    711,025,428.08x = 390,293,468,538,639,296
  5. Step 5: Solve for x
    x = 390,293,468,538,639,296/711,025,428.08
  6. Step 6: Final answer
    x = 548,916,330.03

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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.