Home / 987,006.60-1,362,078.50-579,115.40

Finding the Fourth Proportional to 987,006.60, 1,362,078.50 and 579,115.40

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Solution

The fourth proportional to 987,006.60, 1,362,078.50 and 579,115.40 is: 799,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,006.60 : 1,362,078.50 = 579,115.40 : x
  2. Step 2: Convert to fraction form
    987,006.60/1,362,078.50 = 579,115.40/x
  3. Step 3: Cross multiply
    987,006.60x = 1,362,078.50 × 579,115.40
  4. Step 4: Simplify right side
    987,006.60x = 788,800,635,358.90
  5. Step 5: Solve for x
    x = 788,800,635,358.90/987,006.60
  6. Step 6: Final answer
    x = 799,184.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.