Home / 687,053.70-1,030,580.55-576,828.90

Finding the Fourth Proportional to 687,053.70, 1,030,580.55 and 576,828.90

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Solution

The fourth proportional to 687,053.70, 1,030,580.55 and 576,828.90 is: 865,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,053.70 : 1,030,580.55 = 576,828.90 : x
  2. Step 2: Convert to fraction form
    687,053.70/1,030,580.55 = 576,828.90/x
  3. Step 3: Cross multiply
    687,053.70x = 1,030,580.55 × 576,828.90
  4. Step 4: Simplify right side
    687,053.70x = 594,468,645,017.90
  5. Step 5: Solve for x
    x = 594,468,645,017.90/687,053.70
  6. Step 6: Final answer
    x = 865,243.35

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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.