Home / 689,440.56-951,116.88-402,831.84

Finding the Fourth Proportional to 689,440.56, 951,116.88 and 402,831.84

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Solution

The fourth proportional to 689,440.56, 951,116.88 and 402,831.84 is: 555,726.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,440.56 : 951,116.88 = 402,831.84 : x
  2. Step 2: Convert to fraction form
    689,440.56/951,116.88 = 402,831.84/x
  3. Step 3: Cross multiply
    689,440.56x = 951,116.88 × 402,831.84
  4. Step 4: Simplify right side
    689,440.56x = 383,140,162,825.46
  5. Step 5: Solve for x
    x = 383,140,162,825.46/689,440.56
  6. Step 6: Final answer
    x = 555,726.17

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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.