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Finding the Fourth Proportional to 721,962.18, 995,994.98 and 435,323.03

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Solution

The fourth proportional to 721,962.18, 995,994.98 and 435,323.03 is: 600,557.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,962.18 : 995,994.98 = 435,323.03 : x
  2. Step 2: Convert to fraction form
    721,962.18/995,994.98 = 435,323.03/x
  3. Step 3: Cross multiply
    721,962.18x = 995,994.98 × 435,323.03
  4. Step 4: Simplify right side
    721,962.18x = 433,579,547,578.42
  5. Step 5: Solve for x
    x = 433,579,547,578.42/721,962.18
  6. Step 6: Final answer
    x = 600,557.15

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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.