Home / 887,015.90-1,330,264.65-318,331.10

Finding the Fourth Proportional to 887,015.90, 1,330,264.65 and 318,331.10

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Solution

The fourth proportional to 887,015.90, 1,330,264.65 and 318,331.10 is: 477,403.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,015.90 : 1,330,264.65 = 318,331.10 : x
  2. Step 2: Convert to fraction form
    887,015.90/1,330,264.65 = 318,331.10/x
  3. Step 3: Cross multiply
    887,015.90x = 1,330,264.65 × 318,331.10
  4. Step 4: Simplify right side
    887,015.90x = 423,464,609,325.62
  5. Step 5: Solve for x
    x = 423,464,609,325.62/887,015.90
  6. Step 6: Final answer
    x = 477,403.63

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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.