Home / 738,385.10-1,107,577.65-402,461.90

Finding the Fourth Proportional to 738,385.10, 1,107,577.65 and 402,461.90

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Solution

The fourth proportional to 738,385.10, 1,107,577.65 and 402,461.90 is: 603,692.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,385.10 : 1,107,577.65 = 402,461.90 : x
  2. Step 2: Convert to fraction form
    738,385.10/1,107,577.65 = 402,461.90/x
  3. Step 3: Cross multiply
    738,385.10x = 1,107,577.65 × 402,461.90
  4. Step 4: Simplify right side
    738,385.10x = 445,757,805,416.54
  5. Step 5: Solve for x
    x = 445,757,805,416.54/738,385.10
  6. Step 6: Final answer
    x = 603,692.85

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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.