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Finding the Fourth Proportional to 575,245.40, 861,312.90 and 450,829.40

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Solution

The fourth proportional to 575,245.40, 861,312.90 and 450,829.40 is: 675,025.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,245.40 : 861,312.90 = 450,829.40 : x
  2. Step 2: Convert to fraction form
    575,245.40/861,312.90 = 450,829.40/x
  3. Step 3: Cross multiply
    575,245.40x = 861,312.90 × 450,829.40
  4. Step 4: Simplify right side
    575,245.40x = 388,305,177,919.26
  5. Step 5: Solve for x
    x = 388,305,177,919.26/575,245.40
  6. Step 6: Final answer
    x = 675,025.26

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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.