Home / 1,138,876.83-1,708,670.61-340,189.89

Finding the Fourth Proportional to 1,138,876.83, 1,708,670.61 and 340,189.89

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Solution

The fourth proportional to 1,138,876.83, 1,708,670.61 and 340,189.89 is: 510,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,876.83 : 1,708,670.61 = 340,189.89 : x
  2. Step 2: Convert to fraction form
    1,138,876.83/1,708,670.61 = 340,189.89/x
  3. Step 3: Cross multiply
    1,138,876.83x = 1,708,670.61 × 340,189.89
  4. Step 4: Simplify right side
    1,138,876.83x = 581,272,466,862.13
  5. Step 5: Solve for x
    x = 581,272,466,862.13/1,138,876.83
  6. Step 6: Final answer
    x = 510,390.98

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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.