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Finding the Fourth Proportional to 551,344.20, 772,669.20 and 551,344.20

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Solution

The fourth proportional to 551,344.20, 772,669.20 and 551,344.20 is: 772,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,344.20 : 772,669.20 = 551,344.20 : x
  2. Step 2: Convert to fraction form
    551,344.20/772,669.20 = 551,344.20/x
  3. Step 3: Cross multiply
    551,344.20x = 772,669.20 × 551,344.20
  4. Step 4: Simplify right side
    551,344.20x = 426,006,681,938.64
  5. Step 5: Solve for x
    x = 426,006,681,938.64/551,344.20
  6. Step 6: Final answer
    x = 772,669.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.