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Finding the Fourth Proportional to 540,724.60, 809,386.26 and 371,253.16

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Solution

The fourth proportional to 540,724.60, 809,386.26 and 371,253.16 is: 555,712.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,724.60 : 809,386.26 = 371,253.16 : x
  2. Step 2: Convert to fraction form
    540,724.60/809,386.26 = 371,253.16/x
  3. Step 3: Cross multiply
    540,724.60x = 809,386.26 × 371,253.16
  4. Step 4: Simplify right side
    540,724.60x = 300,487,206,685.58
  5. Step 5: Solve for x
    x = 300,487,206,685.58/540,724.60
  6. Step 6: Final answer
    x = 555,712.11

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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.