Home / 711,470.42-982,079.34-439,746.74

Finding the Fourth Proportional to 711,470.42, 982,079.34 and 439,746.74

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Solution

The fourth proportional to 711,470.42, 982,079.34 and 439,746.74 is: 607,005.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,470.42 : 982,079.34 = 439,746.74 : x
  2. Step 2: Convert to fraction form
    711,470.42/982,079.34 = 439,746.74/x
  3. Step 3: Cross multiply
    711,470.42x = 982,079.34 × 439,746.74
  4. Step 4: Simplify right side
    711,470.42x = 431,866,188,186.35
  5. Step 5: Solve for x
    x = 431,866,188,186.35/711,470.42
  6. Step 6: Final answer
    x = 607,005.12

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1.5x scale

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.