Home / 711,166.40-1,064,125.20-648,180.80

Finding the Fourth Proportional to 711,166.40, 1,064,125.20 and 648,180.80

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Solution

The fourth proportional to 711,166.40, 1,064,125.20 and 648,180.80 is: 969,879.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,166.40 : 1,064,125.20 = 648,180.80 : x
  2. Step 2: Convert to fraction form
    711,166.40/1,064,125.20 = 648,180.80/x
  3. Step 3: Cross multiply
    711,166.40x = 1,064,125.20 × 648,180.80
  4. Step 4: Simplify right side
    711,166.40x = 689,745,523,436.16
  5. Step 5: Solve for x
    x = 689,745,523,436.16/711,166.40
  6. Step 6: Final answer
    x = 969,879.23

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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.