Home / 1,287,023.04-1,929,777.55-488,360.71

Finding the Fourth Proportional to 1,287,023.04, 1,929,777.55 and 488,360.71

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Solution

The fourth proportional to 1,287,023.04, 1,929,777.55 and 488,360.71 is: 732,253.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,023.04 : 1,929,777.55 = 488,360.71 : x
  2. Step 2: Convert to fraction form
    1,287,023.04/1,929,777.55 = 488,360.71/x
  3. Step 3: Cross multiply
    1,287,023.04x = 1,929,777.55 × 488,360.71
  4. Step 4: Simplify right side
    1,287,023.04x = 942,427,535,651.38
  5. Step 5: Solve for x
    x = 942,427,535,651.38/1,287,023.04
  6. Step 6: Final answer
    x = 732,253.82

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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.