Home / 851,387.47-1,174,922.63-469,427.83

Finding the Fourth Proportional to 851,387.47, 1,174,922.63 and 469,427.83

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Solution

The fourth proportional to 851,387.47, 1,174,922.63 and 469,427.83 is: 647,814.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,387.47 : 1,174,922.63 = 469,427.83 : x
  2. Step 2: Convert to fraction form
    851,387.47/1,174,922.63 = 469,427.83/x
  3. Step 3: Cross multiply
    851,387.47x = 1,174,922.63 × 469,427.83
  4. Step 4: Simplify right side
    851,387.47x = 551,541,380,618.79
  5. Step 5: Solve for x
    x = 551,541,380,618.79/851,387.47
  6. Step 6: Final answer
    x = 647,814.77

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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.