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Finding the Fourth Proportional to 567,340.85, 782,935.13 and 312,692.69

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Solution

The fourth proportional to 567,340.85, 782,935.13 and 312,692.69 is: 431,518.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,340.85 : 782,935.13 = 312,692.69 : x
  2. Step 2: Convert to fraction form
    567,340.85/782,935.13 = 312,692.69/x
  3. Step 3: Cross multiply
    567,340.85x = 782,935.13 × 312,692.69
  4. Step 4: Simplify right side
    567,340.85x = 244,818,090,331.74
  5. Step 5: Solve for x
    x = 244,818,090,331.74/567,340.85
  6. Step 6: Final answer
    x = 431,518.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.