Home / 398,731.59-549,831.57-262,591.65

Finding the Fourth Proportional to 398,731.59, 549,831.57 and 262,591.65

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Solution

The fourth proportional to 398,731.59, 549,831.57 and 262,591.65 is: 362,101.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,731.59 : 549,831.57 = 262,591.65 : x
  2. Step 2: Convert to fraction form
    398,731.59/549,831.57 = 262,591.65/x
  3. Step 3: Cross multiply
    398,731.59x = 549,831.57 × 262,591.65
  4. Step 4: Simplify right side
    398,731.59x = 144,381,179,188.39
  5. Step 5: Solve for x
    x = 144,381,179,188.39/398,731.59
  6. Step 6: Final answer
    x = 362,101.18

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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.