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Finding the Fourth Proportional to 540,720.16, 745,945.80 and 349,795.12

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Solution

The fourth proportional to 540,720.16, 745,945.80 and 349,795.12 is: 482,556.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,720.16 : 745,945.80 = 349,795.12 : x
  2. Step 2: Convert to fraction form
    540,720.16/745,945.80 = 349,795.12/x
  3. Step 3: Cross multiply
    540,720.16x = 745,945.80 × 349,795.12
  4. Step 4: Simplify right side
    540,720.16x = 260,928,200,624.50
  5. Step 5: Solve for x
    x = 260,928,200,624.50/540,720.16
  6. Step 6: Final answer
    x = 482,556.82

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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.