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Finding the Fourth Proportional to 657,692.40, 986,210.55 and 302,304.90

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Solution

The fourth proportional to 657,692.40, 986,210.55 and 302,304.90 is: 453,306.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,692.40 : 986,210.55 = 302,304.90 : x
  2. Step 2: Convert to fraction form
    657,692.40/986,210.55 = 302,304.90/x
  3. Step 3: Cross multiply
    657,692.40x = 986,210.55 × 302,304.90
  4. Step 4: Simplify right side
    657,692.40x = 298,136,281,696.70
  5. Step 5: Solve for x
    x = 298,136,281,696.70/657,692.40
  6. Step 6: Final answer
    x = 453,306.56

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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.