Home / 761,962.92-1,142,864.16-312,731.24

Finding the Fourth Proportional to 761,962.92, 1,142,864.16 and 312,731.24

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Solution

The fourth proportional to 761,962.92, 1,142,864.16 and 312,731.24 is: 469,063.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,962.92 : 1,142,864.16 = 312,731.24 : x
  2. Step 2: Convert to fraction form
    761,962.92/1,142,864.16 = 312,731.24/x
  3. Step 3: Cross multiply
    761,962.92x = 1,142,864.16 × 312,731.24
  4. Step 4: Simplify right side
    761,962.92x = 357,409,325,908.36
  5. Step 5: Solve for x
    x = 357,409,325,908.36/761,962.92
  6. Step 6: Final answer
    x = 469,063.94

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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.