Home / 887,988.90-1,225,399.78-485,572.26

Finding the Fourth Proportional to 887,988.90, 1,225,399.78 and 485,572.26

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Solution

The fourth proportional to 887,988.90, 1,225,399.78 and 485,572.26 is: 670,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,988.90 : 1,225,399.78 = 485,572.26 : x
  2. Step 2: Convert to fraction form
    887,988.90/1,225,399.78 = 485,572.26/x
  3. Step 3: Cross multiply
    887,988.90x = 1,225,399.78 × 485,572.26
  4. Step 4: Simplify right side
    887,988.90x = 595,020,140,578.10
  5. Step 5: Solve for x
    x = 595,020,140,578.10/887,988.90
  6. Step 6: Final answer
    x = 670,076.10

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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.