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Finding the Fourth Proportional to 540,423.73, 745,787.72 and 295,408.86

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Solution

The fourth proportional to 540,423.73, 745,787.72 and 295,408.86 is: 407,665.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,423.73 : 745,787.72 = 295,408.86 : x
  2. Step 2: Convert to fraction form
    540,423.73/745,787.72 = 295,408.86/x
  3. Step 3: Cross multiply
    540,423.73x = 745,787.72 × 295,408.86
  4. Step 4: Simplify right side
    540,423.73x = 220,312,298,109.02
  5. Step 5: Solve for x
    x = 220,312,298,109.02/540,423.73
  6. Step 6: Final answer
    x = 407,665.85

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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.