Home / 1,287,020.60-1,929,773.90-488,358.27

Finding the Fourth Proportional to 1,287,020.60, 1,929,773.90 and 488,358.27

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Solution

The fourth proportional to 1,287,020.60, 1,929,773.90 and 488,358.27 is: 732,250.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,020.60 : 1,929,773.90 = 488,358.27 : x
  2. Step 2: Convert to fraction form
    1,287,020.60/1,929,773.90 = 488,358.27/x
  3. Step 3: Cross multiply
    1,287,020.60x = 1,929,773.90 × 488,358.27
  4. Step 4: Simplify right side
    1,287,020.60x = 942,421,040,853.36
  5. Step 5: Solve for x
    x = 942,421,040,853.36/1,287,020.60
  6. Step 6: Final answer
    x = 732,250.16

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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.