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Finding the Fourth Proportional to 540,023.64, 745,445.07 and 356,233.02

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Solution

The fourth proportional to 540,023.64, 745,445.07 and 356,233.02 is: 491,741.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,023.64 : 745,445.07 = 356,233.02 : x
  2. Step 2: Convert to fraction form
    540,023.64/745,445.07 = 356,233.02/x
  3. Step 3: Cross multiply
    540,023.64x = 745,445.07 × 356,233.02
  4. Step 4: Simplify right side
    540,023.64x = 265,552,148,530.21
  5. Step 5: Solve for x
    x = 265,552,148,530.21/540,023.64
  6. Step 6: Final answer
    x = 491,741.71

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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.