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Finding the Fourth Proportional to 540,085.92, 745,304.20 and 298,329.48

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Solution

The fourth proportional to 540,085.92, 745,304.20 and 298,329.48 is: 411,686.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,085.92 : 745,304.20 = 298,329.48 : x
  2. Step 2: Convert to fraction form
    540,085.92/745,304.20 = 298,329.48/x
  3. Step 3: Cross multiply
    540,085.92x = 745,304.20 × 298,329.48
  4. Step 4: Simplify right side
    540,085.92x = 222,346,214,427.82
  5. Step 5: Solve for x
    x = 222,346,214,427.82/540,085.92
  6. Step 6: Final answer
    x = 411,686.75

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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.