Home / 763,765.20-1,144,870.20-448,059.60

Finding the Fourth Proportional to 763,765.20, 1,144,870.20 and 448,059.60

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Solution

The fourth proportional to 763,765.20, 1,144,870.20 and 448,059.60 is: 671,633.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,765.20 : 1,144,870.20 = 448,059.60 : x
  2. Step 2: Convert to fraction form
    763,765.20/1,144,870.20 = 448,059.60/x
  3. Step 3: Cross multiply
    763,765.20x = 1,144,870.20 × 448,059.60
  4. Step 4: Simplify right side
    763,765.20x = 512,970,083,863.92
  5. Step 5: Solve for x
    x = 512,970,083,863.92/763,765.20
  6. Step 6: Final answer
    x = 671,633.22

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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.