Home / 1,045.30-1,567.95-498.55

Finding the Fourth Proportional to 1,045.30, 1,567.95 and 498.55

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Solution

The fourth proportional to 1,045.30, 1,567.95 and 498.55 is: 747.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.30 : 1,567.95 = 498.55 : x
  2. Step 2: Convert to fraction form
    1,045.30/1,567.95 = 498.55/x
  3. Step 3: Cross multiply
    1,045.30x = 1,567.95 × 498.55
  4. Step 4: Simplify right side
    1,045.30x = 781,701.47
  5. Step 5: Solve for x
    x = 781,701.47/1,045.30
  6. Step 6: Final answer
    x = 747.83

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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.