Home / 711,964.80-1,068,340.32-291,535.20

Finding the Fourth Proportional to 711,964.80, 1,068,340.32 and 291,535.20

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Solution

The fourth proportional to 711,964.80, 1,068,340.32 and 291,535.20 is: 437,463.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,964.80 : 1,068,340.32 = 291,535.20 : x
  2. Step 2: Convert to fraction form
    711,964.80/1,068,340.32 = 291,535.20/x
  3. Step 3: Cross multiply
    711,964.80x = 1,068,340.32 × 291,535.20
  4. Step 4: Simplify right side
    711,964.80x = 311,458,808,859.26
  5. Step 5: Solve for x
    x = 311,458,808,859.26/711,964.80
  6. Step 6: Final answer
    x = 437,463.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.