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Finding the Fourth Proportional to 438,692.58, 658,301.04 and 403,000.74

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Solution

The fourth proportional to 438,692.58, 658,301.04 and 403,000.74 is: 604,741.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,692.58 : 658,301.04 = 403,000.74 : x
  2. Step 2: Convert to fraction form
    438,692.58/658,301.04 = 403,000.74/x
  3. Step 3: Cross multiply
    438,692.58x = 658,301.04 × 403,000.74
  4. Step 4: Simplify right side
    438,692.58x = 265,295,806,262.77
  5. Step 5: Solve for x
    x = 265,295,806,262.77/438,692.58
  6. Step 6: Final answer
    x = 604,741.95

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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.