Home / 711,541.40-1,064,687.70-648,555.80

Finding the Fourth Proportional to 711,541.40, 1,064,687.70 and 648,555.80

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Solution

The fourth proportional to 711,541.40, 1,064,687.70 and 648,555.80 is: 970,441.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,541.40 : 1,064,687.70 = 648,555.80 : x
  2. Step 2: Convert to fraction form
    711,541.40/1,064,687.70 = 648,555.80/x
  3. Step 3: Cross multiply
    711,541.40x = 1,064,687.70 × 648,555.80
  4. Step 4: Simplify right side
    711,541.40x = 690,509,383,023.66
  5. Step 5: Solve for x
    x = 690,509,383,023.66/711,541.40
  6. Step 6: Final answer
    x = 970,441.61

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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.