Home / 895,571.75-1,235,871.33-487,678.61

Finding the Fourth Proportional to 895,571.75, 1,235,871.33 and 487,678.61

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Solution

The fourth proportional to 895,571.75, 1,235,871.33 and 487,678.61 is: 672,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,571.75 : 1,235,871.33 = 487,678.61 : x
  2. Step 2: Convert to fraction form
    895,571.75/1,235,871.33 = 487,678.61/x
  3. Step 3: Cross multiply
    895,571.75x = 1,235,871.33 × 487,678.61
  4. Step 4: Simplify right side
    895,571.75x = 602,708,012,353.25
  5. Step 5: Solve for x
    x = 602,708,012,353.25/895,571.75
  6. Step 6: Final answer
    x = 672,986.85

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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.