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Finding the Fourth Proportional to 626,547.78, 864,547.29 and 372,000.42

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Solution

The fourth proportional to 626,547.78, 864,547.29 and 372,000.42 is: 513,307.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,547.78 : 864,547.29 = 372,000.42 : x
  2. Step 2: Convert to fraction form
    626,547.78/864,547.29 = 372,000.42/x
  3. Step 3: Cross multiply
    626,547.78x = 864,547.29 × 372,000.42
  4. Step 4: Simplify right side
    626,547.78x = 321,611,954,989.86
  5. Step 5: Solve for x
    x = 321,611,954,989.86/626,547.78
  6. Step 6: Final answer
    x = 513,307.95

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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.