Home / 747,454.80-1,120,999.95-214,920.30

Finding the Fourth Proportional to 747,454.80, 1,120,999.95 and 214,920.30

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Solution

The fourth proportional to 747,454.80, 1,120,999.95 and 214,920.30 is: 322,328.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,454.80 : 1,120,999.95 = 214,920.30 : x
  2. Step 2: Convert to fraction form
    747,454.80/1,120,999.95 = 214,920.30/x
  3. Step 3: Cross multiply
    747,454.80x = 1,120,999.95 × 214,920.30
  4. Step 4: Simplify right side
    747,454.80x = 240,925,645,553.99
  5. Step 5: Solve for x
    x = 240,925,645,553.99/747,454.80
  6. Step 6: Final answer
    x = 322,328.05

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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.