Home / 858,554.28-1,287,831.42-297,588.78

Finding the Fourth Proportional to 858,554.28, 1,287,831.42 and 297,588.78

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Solution

The fourth proportional to 858,554.28, 1,287,831.42 and 297,588.78 is: 446,383.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,554.28 : 1,287,831.42 = 297,588.78 : x
  2. Step 2: Convert to fraction form
    858,554.28/1,287,831.42 = 297,588.78/x
  3. Step 3: Cross multiply
    858,554.28x = 1,287,831.42 × 297,588.78
  4. Step 4: Simplify right side
    858,554.28x = 383,244,181,123.47
  5. Step 5: Solve for x
    x = 383,244,181,123.47/858,554.28
  6. Step 6: Final answer
    x = 446,383.17

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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.