Home / 1,086,302.64-1,500,341.85-715,423.53

Finding the Fourth Proportional to 1,086,302.64, 1,500,341.85 and 715,423.53

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Solution

The fourth proportional to 1,086,302.64, 1,500,341.85 and 715,423.53 is: 988,103.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,302.64 : 1,500,341.85 = 715,423.53 : x
  2. Step 2: Convert to fraction form
    1,086,302.64/1,500,341.85 = 715,423.53/x
  3. Step 3: Cross multiply
    1,086,302.64x = 1,500,341.85 × 715,423.53
  4. Step 4: Simplify right side
    1,086,302.64x = 1,073,379,862,533.73
  5. Step 5: Solve for x
    x = 1,073,379,862,533.73/1,086,302.64
  6. Step 6: Final answer
    x = 988,103.89

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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.