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Finding the Fourth Proportional to 540,346.86, 810,660.32 and 287,419.10

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Solution

The fourth proportional to 540,346.86, 810,660.32 and 287,419.10 is: 431,203.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,346.86 : 810,660.32 = 287,419.10 : x
  2. Step 2: Convert to fraction form
    540,346.86/810,660.32 = 287,419.10/x
  3. Step 3: Cross multiply
    540,346.86x = 810,660.32 × 287,419.10
  4. Step 4: Simplify right side
    540,346.86x = 232,999,255,167.54
  5. Step 5: Solve for x
    x = 232,999,255,167.54/540,346.86
  6. Step 6: Final answer
    x = 431,203.13

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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.