Home / 1,057,988.20-1,587,128.10-383,906.20

Finding the Fourth Proportional to 1,057,988.20, 1,587,128.10 and 383,906.20

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Solution

The fourth proportional to 1,057,988.20, 1,587,128.10 and 383,906.20 is: 575,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,988.20 : 1,587,128.10 = 383,906.20 : x
  2. Step 2: Convert to fraction form
    1,057,988.20/1,587,128.10 = 383,906.20/x
  3. Step 3: Cross multiply
    1,057,988.20x = 1,587,128.10 × 383,906.20
  4. Step 4: Simplify right side
    1,057,988.20x = 609,308,317,784.22
  5. Step 5: Solve for x
    x = 609,308,317,784.22/1,057,988.20
  6. Step 6: Final answer
    x = 575,912.21

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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.