Home / 887,013.90-1,330,261.65-318,329.10

Finding the Fourth Proportional to 887,013.90, 1,330,261.65 and 318,329.10

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Solution

The fourth proportional to 887,013.90, 1,330,261.65 and 318,329.10 is: 477,400.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,013.90 : 1,330,261.65 = 318,329.10 : x
  2. Step 2: Convert to fraction form
    887,013.90/1,330,261.65 = 318,329.10/x
  3. Step 3: Cross multiply
    887,013.90x = 1,330,261.65 × 318,329.10
  4. Step 4: Simplify right side
    887,013.90x = 423,460,993,809.02
  5. Step 5: Solve for x
    x = 423,460,993,809.02/887,013.90
  6. Step 6: Final answer
    x = 477,400.63

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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.