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Finding the Fourth Proportional to 1,720,074.48, 2,580,822.48 and 866,690

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Solution

The fourth proportional to 1,720,074.48, 2,580,822.48 and 866,690 is: 1,300,393.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720,074.48 : 2,580,822.48 = 866,690 : x
  2. Step 2: Convert to fraction form
    1,720,074.48/2,580,822.48 = 866,690/x
  3. Step 3: Cross multiply
    1,720,074.48x = 2,580,822.48 × 866,690
  4. Step 4: Simplify right side
    1,720,074.48x = 2,236,773,035,191.20
  5. Step 5: Solve for x
    x = 2,236,773,035,191.20/1,720,074.48
  6. Step 6: Final answer
    x = 1,300,393.13

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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.