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Finding the Fourth Proportional to 721,962.63, 995,995.60 and 435,323.47

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Solution

The fourth proportional to 721,962.63, 995,995.60 and 435,323.47 is: 600,557.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,962.63 : 995,995.60 = 435,323.47 : x
  2. Step 2: Convert to fraction form
    721,962.63/995,995.60 = 435,323.47/x
  3. Step 3: Cross multiply
    721,962.63x = 995,995.60 × 435,323.47
  4. Step 4: Simplify right side
    721,962.63x = 433,580,260,696.73
  5. Step 5: Solve for x
    x = 433,580,260,696.73/721,962.63
  6. Step 6: Final answer
    x = 600,557.76

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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.