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Finding the Fourth Proportional to 648,498, 888,438.10 and 624,247.44

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Solution

The fourth proportional to 648,498, 888,438.10 and 624,247.44 is: 855,214.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,498 : 888,438.10 = 624,247.44 : x
  2. Step 2: Convert to fraction form
    648,498/888,438.10 = 624,247.44/x
  3. Step 3: Cross multiply
    648,498x = 888,438.10 × 624,247.44
  4. Step 4: Simplify right side
    648,498x = 554,605,209,523.46
  5. Step 5: Solve for x
    x = 554,605,209,523.46/648,498
  6. Step 6: Final answer
    x = 855,214.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.