Home / 747,620.60-1,121,430.90-449,022.20

Finding the Fourth Proportional to 747,620.60, 1,121,430.90 and 449,022.20

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Solution

The fourth proportional to 747,620.60, 1,121,430.90 and 449,022.20 is: 673,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,620.60 : 1,121,430.90 = 449,022.20 : x
  2. Step 2: Convert to fraction form
    747,620.60/1,121,430.90 = 449,022.20/x
  3. Step 3: Cross multiply
    747,620.60x = 1,121,430.90 × 449,022.20
  4. Step 4: Simplify right side
    747,620.60x = 503,547,369,865.98
  5. Step 5: Solve for x
    x = 503,547,369,865.98/747,620.60
  6. Step 6: Final answer
    x = 673,533.30

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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.