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Finding the Fourth Proportional to 540,028.95, 745,225.50 and 298,306.32

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Solution

The fourth proportional to 540,028.95, 745,225.50 and 298,306.32 is: 411,654.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,028.95 : 745,225.50 = 298,306.32 : x
  2. Step 2: Convert to fraction form
    540,028.95/745,225.50 = 298,306.32/x
  3. Step 3: Cross multiply
    540,028.95x = 745,225.50 × 298,306.32
  4. Step 4: Simplify right side
    540,028.95x = 222,305,476,475.16
  5. Step 5: Solve for x
    x = 222,305,476,475.16/540,028.95
  6. Step 6: Final answer
    x = 411,654.74

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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.