Home / 711,566.40-1,064,725.20-648,580.80

Finding the Fourth Proportional to 711,566.40, 1,064,725.20 and 648,580.80

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Solution

The fourth proportional to 711,566.40, 1,064,725.20 and 648,580.80 is: 970,479.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,566.40 : 1,064,725.20 = 648,580.80 : x
  2. Step 2: Convert to fraction form
    711,566.40/1,064,725.20 = 648,580.80/x
  3. Step 3: Cross multiply
    711,566.40x = 1,064,725.20 × 648,580.80
  4. Step 4: Simplify right side
    711,566.40x = 690,560,321,996.16
  5. Step 5: Solve for x
    x = 690,560,321,996.16/711,566.40
  6. Step 6: Final answer
    x = 970,479.10

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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.