Home / 1,000,645.72-1,380,865.52-559,123.83

Finding the Fourth Proportional to 1,000,645.72, 1,380,865.52 and 559,123.83

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Solution

The fourth proportional to 1,000,645.72, 1,380,865.52 and 559,123.83 is: 771,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,645.72 : 1,380,865.52 = 559,123.83 : x
  2. Step 2: Convert to fraction form
    1,000,645.72/1,380,865.52 = 559,123.83/x
  3. Step 3: Cross multiply
    1,000,645.72x = 1,380,865.52 × 559,123.83
  4. Step 4: Simplify right side
    1,000,645.72x = 772,074,818,257.34
  5. Step 5: Solve for x
    x = 772,074,818,257.34/1,000,645.72
  6. Step 6: Final answer
    x = 771,576.60

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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.