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Finding the Fourth Proportional to 721,630.53, 995,866.38 and 467,424.18

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Solution

The fourth proportional to 721,630.53, 995,866.38 and 467,424.18 is: 645,055.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,630.53 : 995,866.38 = 467,424.18 : x
  2. Step 2: Convert to fraction form
    721,630.53/995,866.38 = 467,424.18/x
  3. Step 3: Cross multiply
    721,630.53x = 995,866.38 × 467,424.18
  4. Step 4: Simplify right side
    721,630.53x = 465,492,026,061.07
  5. Step 5: Solve for x
    x = 465,492,026,061.07/721,630.53
  6. Step 6: Final answer
    x = 645,055.89

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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.