Home / 1,000,645.59-1,380,865.35-559,123.70

Finding the Fourth Proportional to 1,000,645.59, 1,380,865.35 and 559,123.70

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Solution

The fourth proportional to 1,000,645.59, 1,380,865.35 and 559,123.70 is: 771,576.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,645.59 : 1,380,865.35 = 559,123.70 : x
  2. Step 2: Convert to fraction form
    1,000,645.59/1,380,865.35 = 559,123.70/x
  3. Step 3: Cross multiply
    1,000,645.59x = 1,380,865.35 × 559,123.70
  4. Step 4: Simplify right side
    1,000,645.59x = 772,074,543,693.80
  5. Step 5: Solve for x
    x = 772,074,543,693.80/1,000,645.59
  6. Step 6: Final answer
    x = 771,576.42

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Double scale
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1.5x scale

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.