Home / 1,029,686.20-1,544,675.10-319,640.20

Finding the Fourth Proportional to 1,029,686.20, 1,544,675.10 and 319,640.20

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Solution

The fourth proportional to 1,029,686.20, 1,544,675.10 and 319,640.20 is: 479,505.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,686.20 : 1,544,675.10 = 319,640.20 : x
  2. Step 2: Convert to fraction form
    1,029,686.20/1,544,675.10 = 319,640.20/x
  3. Step 3: Cross multiply
    1,029,686.20x = 1,544,675.10 × 319,640.20
  4. Step 4: Simplify right side
    1,029,686.20x = 493,740,257,899.02
  5. Step 5: Solve for x
    x = 493,740,257,899.02/1,029,686.20
  6. Step 6: Final answer
    x = 479,505.56

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Double scale
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1.5x scale

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.