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Finding the Fourth Proportional to 540,016.81, 745,218.42 and 298,316.18

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Solution

The fourth proportional to 540,016.81, 745,218.42 and 298,316.18 is: 411,673.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,016.81 : 745,218.42 = 298,316.18 : x
  2. Step 2: Convert to fraction form
    540,016.81/745,218.42 = 298,316.18/x
  3. Step 3: Cross multiply
    540,016.81x = 745,218.42 × 298,316.18
  4. Step 4: Simplify right side
    540,016.81x = 222,310,712,320.04
  5. Step 5: Solve for x
    x = 222,310,712,320.04/540,016.81
  6. Step 6: Final answer
    x = 411,673.69

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Double scale
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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.