Home / 1,287,021.35-1,929,775.02-488,359.02

Finding the Fourth Proportional to 1,287,021.35, 1,929,775.02 and 488,359.02

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Solution

The fourth proportional to 1,287,021.35, 1,929,775.02 and 488,359.02 is: 732,251.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,021.35 : 1,929,775.02 = 488,359.02 : x
  2. Step 2: Convert to fraction form
    1,287,021.35/1,929,775.02 = 488,359.02/x
  3. Step 3: Cross multiply
    1,287,021.35x = 1,929,775.02 × 488,359.02
  4. Step 4: Simplify right side
    1,287,021.35x = 942,423,037,587.68
  5. Step 5: Solve for x
    x = 942,423,037,587.68/1,287,021.35
  6. Step 6: Final answer
    x = 732,251.29

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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.