Home / 747,420.30-1,120,948.20-214,885.80

Finding the Fourth Proportional to 747,420.30, 1,120,948.20 and 214,885.80

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Solution

The fourth proportional to 747,420.30, 1,120,948.20 and 214,885.80 is: 322,276.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,420.30 : 1,120,948.20 = 214,885.80 : x
  2. Step 2: Convert to fraction form
    747,420.30/1,120,948.20 = 214,885.80/x
  3. Step 3: Cross multiply
    747,420.30x = 1,120,948.20 × 214,885.80
  4. Step 4: Simplify right side
    747,420.30x = 240,875,850,715.56
  5. Step 5: Solve for x
    x = 240,875,850,715.56/747,420.30
  6. Step 6: Final answer
    x = 322,276.30

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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.