Home / 1,126,572.93-1,554,732.90-643,293.32

Finding the Fourth Proportional to 1,126,572.93, 1,554,732.90 and 643,293.32

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Solution

The fourth proportional to 1,126,572.93, 1,554,732.90 and 643,293.32 is: 887,780.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,572.93 : 1,554,732.90 = 643,293.32 : x
  2. Step 2: Convert to fraction form
    1,126,572.93/1,554,732.90 = 643,293.32/x
  3. Step 3: Cross multiply
    1,126,572.93x = 1,554,732.90 × 643,293.32
  4. Step 4: Simplify right side
    1,126,572.93x = 1,000,149,281,180.56
  5. Step 5: Solve for x
    x = 1,000,149,281,180.56/1,126,572.93
  6. Step 6: Final answer
    x = 887,780.32

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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.