Home / 711,232.40-1,064,224.20-648,246.80

Finding the Fourth Proportional to 711,232.40, 1,064,224.20 and 648,246.80

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Solution

The fourth proportional to 711,232.40, 1,064,224.20 and 648,246.80 is: 969,978.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,232.40 : 1,064,224.20 = 648,246.80 : x
  2. Step 2: Convert to fraction form
    711,232.40/1,064,224.20 = 648,246.80/x
  3. Step 3: Cross multiply
    711,232.40x = 1,064,224.20 × 648,246.80
  4. Step 4: Simplify right side
    711,232.40x = 689,879,932,132.56
  5. Step 5: Solve for x
    x = 689,879,932,132.56/711,232.40
  6. Step 6: Final answer
    x = 969,978.21

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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.