Home / 459,196.40-689,831.56-272,330.48

Finding the Fourth Proportional to 459,196.40, 689,831.56 and 272,330.48

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Solution

The fourth proportional to 459,196.40, 689,831.56 and 272,330.48 is: 409,110.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,196.40 : 689,831.56 = 272,330.48 : x
  2. Step 2: Convert to fraction form
    459,196.40/689,831.56 = 272,330.48/x
  3. Step 3: Cross multiply
    459,196.40x = 689,831.56 × 272,330.48
  4. Step 4: Simplify right side
    459,196.40x = 187,862,159,853.95
  5. Step 5: Solve for x
    x = 187,862,159,853.95/459,196.40
  6. Step 6: Final answer
    x = 409,110.70

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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.