Home / 578,001.70-867,002.55-459,028.90

Finding the Fourth Proportional to 578,001.70, 867,002.55 and 459,028.90

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Solution

The fourth proportional to 578,001.70, 867,002.55 and 459,028.90 is: 688,543.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,001.70 : 867,002.55 = 459,028.90 : x
  2. Step 2: Convert to fraction form
    578,001.70/867,002.55 = 459,028.90/x
  3. Step 3: Cross multiply
    578,001.70x = 867,002.55 × 459,028.90
  4. Step 4: Simplify right side
    578,001.70x = 397,979,226,823.70
  5. Step 5: Solve for x
    x = 397,979,226,823.70/578,001.70
  6. Step 6: Final answer
    x = 688,543.35

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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.