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Finding the Fourth Proportional to 887,837, 1,225,215.07 and 485,429

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Solution

The fourth proportional to 887,837, 1,225,215.07 and 485,429 is: 669,892.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,837 : 1,225,215.07 = 485,429 : x
  2. Step 2: Convert to fraction form
    887,837/1,225,215.07 = 485,429/x
  3. Step 3: Cross multiply
    887,837x = 1,225,215.07 × 485,429
  4. Step 4: Simplify right side
    887,837x = 594,754,926,215.03
  5. Step 5: Solve for x
    x = 594,754,926,215.03/887,837
  6. Step 6: Final answer
    x = 669,892.03

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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.