Home / 578,921.14-868,373.88-258,988.42

Finding the Fourth Proportional to 578,921.14, 868,373.88 and 258,988.42

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Solution

The fourth proportional to 578,921.14, 868,373.88 and 258,988.42 is: 388,479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,921.14 : 868,373.88 = 258,988.42 : x
  2. Step 2: Convert to fraction form
    578,921.14/868,373.88 = 258,988.42/x
  3. Step 3: Cross multiply
    578,921.14x = 868,373.88 × 258,988.42
  4. Step 4: Simplify right side
    578,921.14x = 224,898,779,150.47
  5. Step 5: Solve for x
    x = 224,898,779,150.47/578,921.14
  6. Step 6: Final answer
    x = 388,479.13

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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.