Home / 1,028,588.80-1,542,883.20-429,350.80

Finding the Fourth Proportional to 1,028,588.80, 1,542,883.20 and 429,350.80

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Solution

The fourth proportional to 1,028,588.80, 1,542,883.20 and 429,350.80 is: 644,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,588.80 : 1,542,883.20 = 429,350.80 : x
  2. Step 2: Convert to fraction form
    1,028,588.80/1,542,883.20 = 429,350.80/x
  3. Step 3: Cross multiply
    1,028,588.80x = 1,542,883.20 × 429,350.80
  4. Step 4: Simplify right side
    1,028,588.80x = 662,438,136,226.56
  5. Step 5: Solve for x
    x = 662,438,136,226.56/1,028,588.80
  6. Step 6: Final answer
    x = 644,026.20

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Double scale
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Similar ratio
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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.