Home / 771,064.32-1,156,654.80-238,639.20

Finding the Fourth Proportional to 771,064.32, 1,156,654.80 and 238,639.20

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Solution

The fourth proportional to 771,064.32, 1,156,654.80 and 238,639.20 is: 357,976.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,064.32 : 1,156,654.80 = 238,639.20 : x
  2. Step 2: Convert to fraction form
    771,064.32/1,156,654.80 = 238,639.20/x
  3. Step 3: Cross multiply
    771,064.32x = 1,156,654.80 × 238,639.20
  4. Step 4: Simplify right side
    771,064.32x = 276,023,176,148.16
  5. Step 5: Solve for x
    x = 276,023,176,148.16/771,064.32
  6. Step 6: Final answer
    x = 357,976.85

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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.