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Finding the Fourth Proportional to 552,588.40, 762,570.69 and 310,870.90

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Solution

The fourth proportional to 552,588.40, 762,570.69 and 310,870.90 is: 429,001.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,588.40 : 762,570.69 = 310,870.90 : x
  2. Step 2: Convert to fraction form
    552,588.40/762,570.69 = 310,870.90/x
  3. Step 3: Cross multiply
    552,588.40x = 762,570.69 × 310,870.90
  4. Step 4: Simplify right side
    552,588.40x = 237,061,036,713.92
  5. Step 5: Solve for x
    x = 237,061,036,713.92/552,588.40
  6. Step 6: Final answer
    x = 429,001.11

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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.