Home / 987,000.92-1,362,070.65-579,109.70

Finding the Fourth Proportional to 987,000.92, 1,362,070.65 and 579,109.70

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Solution

The fourth proportional to 987,000.92, 1,362,070.65 and 579,109.70 is: 799,176.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,000.92 : 1,362,070.65 = 579,109.70 : x
  2. Step 2: Convert to fraction form
    987,000.92/1,362,070.65 = 579,109.70/x
  3. Step 3: Cross multiply
    987,000.92x = 1,362,070.65 × 579,109.70
  4. Step 4: Simplify right side
    987,000.92x = 788,788,324,266.79
  5. Step 5: Solve for x
    x = 788,788,324,266.79/987,000.92
  6. Step 6: Final answer
    x = 799,176.89

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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.