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Finding the Fourth Proportional to 984,498, 1,358,607.80 and 531,789

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Solution

The fourth proportional to 984,498, 1,358,607.80 and 531,789 is: 733,869.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,498 : 1,358,607.80 = 531,789 : x
  2. Step 2: Convert to fraction form
    984,498/1,358,607.80 = 531,789/x
  3. Step 3: Cross multiply
    984,498x = 1,358,607.80 × 531,789
  4. Step 4: Simplify right side
    984,498x = 722,492,683,354.20
  5. Step 5: Solve for x
    x = 722,492,683,354.20/984,498
  6. Step 6: Final answer
    x = 733,869.12

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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.