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Finding the Fourth Proportional to 540,159.44, 745,399.89 and 298,436.83

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Solution

The fourth proportional to 540,159.44, 745,399.89 and 298,436.83 is: 411,831.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,159.44 : 745,399.89 = 298,436.83 : x
  2. Step 2: Convert to fraction form
    540,159.44/745,399.89 = 298,436.83/x
  3. Step 3: Cross multiply
    540,159.44x = 745,399.89 × 298,436.83
  4. Step 4: Simplify right side
    540,159.44x = 222,454,778,390.45
  5. Step 5: Solve for x
    x = 222,454,778,390.45/540,159.44
  6. Step 6: Final answer
    x = 411,831.70

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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.