Home / 662,721.12-992,586.24-306,987.84

Finding the Fourth Proportional to 662,721.12, 992,586.24 and 306,987.84

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Solution

The fourth proportional to 662,721.12, 992,586.24 and 306,987.84 is: 459,789.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,721.12 : 992,586.24 = 306,987.84 : x
  2. Step 2: Convert to fraction form
    662,721.12/992,586.24 = 306,987.84/x
  3. Step 3: Cross multiply
    662,721.12x = 992,586.24 × 306,987.84
  4. Step 4: Simplify right side
    662,721.12x = 304,711,905,831.32
  5. Step 5: Solve for x
    x = 304,711,905,831.32/662,721.12
  6. Step 6: Final answer
    x = 459,789.04

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1.5x scale

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.