Home / 1,287,339.60-1,931,700.60-539,461.20

Finding the Fourth Proportional to 1,287,339.60, 1,931,700.60 and 539,461.20

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Solution

The fourth proportional to 1,287,339.60, 1,931,700.60 and 539,461.20 is: 809,481.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,339.60 : 1,931,700.60 = 539,461.20 : x
  2. Step 2: Convert to fraction form
    1,287,339.60/1,931,700.60 = 539,461.20/x
  3. Step 3: Cross multiply
    1,287,339.60x = 1,931,700.60 × 539,461.20
  4. Step 4: Simplify right side
    1,287,339.60x = 1,042,077,523,716.72
  5. Step 5: Solve for x
    x = 1,042,077,523,716.72/1,287,339.60
  6. Step 6: Final answer
    x = 809,481.45

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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.