Home / 851,385.47-1,174,919.87-469,425.83

Finding the Fourth Proportional to 851,385.47, 1,174,919.87 and 469,425.83

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Solution

The fourth proportional to 851,385.47, 1,174,919.87 and 469,425.83 is: 647,812.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,385.47 : 1,174,919.87 = 469,425.83 : x
  2. Step 2: Convert to fraction form
    851,385.47/1,174,919.87 = 469,425.83/x
  3. Step 3: Cross multiply
    851,385.47x = 1,174,919.87 × 469,425.83
  4. Step 4: Simplify right side
    851,385.47x = 551,537,730,457.21
  5. Step 5: Solve for x
    x = 551,537,730,457.21/851,385.47
  6. Step 6: Final answer
    x = 647,812.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.