Home / 761,423.92-1,142,137.30-312,064.42

Finding the Fourth Proportional to 761,423.92, 1,142,137.30 and 312,064.42

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Solution

The fourth proportional to 761,423.92, 1,142,137.30 and 312,064.42 is: 468,097.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,423.92 : 1,142,137.30 = 312,064.42 : x
  2. Step 2: Convert to fraction form
    761,423.92/1,142,137.30 = 312,064.42/x
  3. Step 3: Cross multiply
    761,423.92x = 1,142,137.30 × 312,064.42
  4. Step 4: Simplify right side
    761,423.92x = 356,420,414,084.87
  5. Step 5: Solve for x
    x = 356,420,414,084.87/761,423.92
  6. Step 6: Final answer
    x = 468,097.21

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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.