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Finding the Fourth Proportional to 540,319.52, 745,655.80 and 298,617.72

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Solution

The fourth proportional to 540,319.52, 745,655.80 and 298,617.72 is: 412,100.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,319.52 : 745,655.80 = 298,617.72 : x
  2. Step 2: Convert to fraction form
    540,319.52/745,655.80 = 298,617.72/x
  3. Step 3: Cross multiply
    540,319.52x = 745,655.80 × 298,617.72
  4. Step 4: Simplify right side
    540,319.52x = 222,666,034,900.78
  5. Step 5: Solve for x
    x = 222,666,034,900.78/540,319.52
  6. Step 6: Final answer
    x = 412,100.67

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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.