Home / 721,130.90-995,357.46-449,038.03

Finding the Fourth Proportional to 721,130.90, 995,357.46 and 449,038.03

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Solution

The fourth proportional to 721,130.90, 995,357.46 and 449,038.03 is: 619,795.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,130.90 : 995,357.46 = 449,038.03 : x
  2. Step 2: Convert to fraction form
    721,130.90/995,357.46 = 449,038.03/x
  3. Step 3: Cross multiply
    721,130.90x = 995,357.46 × 449,038.03
  4. Step 4: Simplify right side
    721,130.90x = 446,953,354,046.00
  5. Step 5: Solve for x
    x = 446,953,354,046.00/721,130.90
  6. Step 6: Final answer
    x = 619,795.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.