Home / 439,281.40-659,030.10-123,734.20

Finding the Fourth Proportional to 439,281.40, 659,030.10 and 123,734.20

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Solution

The fourth proportional to 439,281.40, 659,030.10 and 123,734.20 is: 185,631.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,281.40 : 659,030.10 = 123,734.20 : x
  2. Step 2: Convert to fraction form
    439,281.40/659,030.10 = 123,734.20/x
  3. Step 3: Cross multiply
    439,281.40x = 659,030.10 × 123,734.20
  4. Step 4: Simplify right side
    439,281.40x = 81,544,562,199.42
  5. Step 5: Solve for x
    x = 81,544,562,199.42/439,281.40
  6. Step 6: Final answer
    x = 185,631.72

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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.