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Finding the Fourth Proportional to 540,164.69, 745,407.13 and 298,442.08

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Solution

The fourth proportional to 540,164.69, 745,407.13 and 298,442.08 is: 411,838.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,164.69 : 745,407.13 = 298,442.08 : x
  2. Step 2: Convert to fraction form
    540,164.69/745,407.13 = 298,442.08/x
  3. Step 3: Cross multiply
    540,164.69x = 745,407.13 × 298,442.08
  4. Step 4: Simplify right side
    540,164.69x = 222,460,854,324.03
  5. Step 5: Solve for x
    x = 222,460,854,324.03/540,164.69
  6. Step 6: Final answer
    x = 411,838.94

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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.