Home / 459,326.22-688,944.76-139,480.86

Finding the Fourth Proportional to 459,326.22, 688,944.76 and 139,480.86

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Solution

The fourth proportional to 459,326.22, 688,944.76 and 139,480.86 is: 209,207.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,326.22 : 688,944.76 = 139,480.86 : x
  2. Step 2: Convert to fraction form
    459,326.22/688,944.76 = 139,480.86/x
  3. Step 3: Cross multiply
    459,326.22x = 688,944.76 × 139,480.86
  4. Step 4: Simplify right side
    459,326.22x = 96,094,607,617.29
  5. Step 5: Solve for x
    x = 96,094,607,617.29/459,326.22
  6. Step 6: Final answer
    x = 209,207.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.