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Finding the Fourth Proportional to 658,885.80, 988,328.70 and 546,692.70

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Solution

The fourth proportional to 658,885.80, 988,328.70 and 546,692.70 is: 820,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,885.80 : 988,328.70 = 546,692.70 : x
  2. Step 2: Convert to fraction form
    658,885.80/988,328.70 = 546,692.70/x
  3. Step 3: Cross multiply
    658,885.80x = 988,328.70 × 546,692.70
  4. Step 4: Simplify right side
    658,885.80x = 540,312,085,490.49
  5. Step 5: Solve for x
    x = 540,312,085,490.49/658,885.80
  6. Step 6: Final answer
    x = 820,039.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.