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Finding the Fourth Proportional to 540,562.17, 745,797.50 and 347,078.28

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Solution

The fourth proportional to 540,562.17, 745,797.50 and 347,078.28 is: 478,853.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,562.17 : 745,797.50 = 347,078.28 : x
  2. Step 2: Convert to fraction form
    540,562.17/745,797.50 = 347,078.28/x
  3. Step 3: Cross multiply
    540,562.17x = 745,797.50 × 347,078.28
  4. Step 4: Simplify right side
    540,562.17x = 258,850,113,528.30
  5. Step 5: Solve for x
    x = 258,850,113,528.30/540,562.17
  6. Step 6: Final answer
    x = 478,853.55

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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.