Home / 972,377.40-1,458,128.70-439,624.20

Finding the Fourth Proportional to 972,377.40, 1,458,128.70 and 439,624.20

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Solution

The fourth proportional to 972,377.40, 1,458,128.70 and 439,624.20 is: 659,238.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,377.40 : 1,458,128.70 = 439,624.20 : x
  2. Step 2: Convert to fraction form
    972,377.40/1,458,128.70 = 439,624.20/x
  3. Step 3: Cross multiply
    972,377.40x = 1,458,128.70 × 439,624.20
  4. Step 4: Simplify right side
    972,377.40x = 641,028,663,234.54
  5. Step 5: Solve for x
    x = 641,028,663,234.54/972,377.40
  6. Step 6: Final answer
    x = 659,238.55

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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.