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Finding the Fourth Proportional to 540,023.60, 809,387.40 and 371,543.60

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Solution

The fourth proportional to 540,023.60, 809,387.40 and 371,543.60 is: 556,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,023.60 : 809,387.40 = 371,543.60 : x
  2. Step 2: Convert to fraction form
    540,023.60/809,387.40 = 371,543.60/x
  3. Step 3: Cross multiply
    540,023.60x = 809,387.40 × 371,543.60
  4. Step 4: Simplify right side
    540,023.60x = 300,722,708,390.64
  5. Step 5: Solve for x
    x = 300,722,708,390.64/540,023.60
  6. Step 6: Final answer
    x = 556,869.57

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1.5x scale

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.