Home / 830,535.42-1,244,831.29-381,299.65

Finding the Fourth Proportional to 830,535.42, 1,244,831.29 and 381,299.65

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Solution

The fourth proportional to 830,535.42, 1,244,831.29 and 381,299.65 is: 571,503.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,535.42 : 1,244,831.29 = 381,299.65 : x
  2. Step 2: Convert to fraction form
    830,535.42/1,244,831.29 = 381,299.65/x
  3. Step 3: Cross multiply
    830,535.42x = 1,244,831.29 × 381,299.65
  4. Step 4: Simplify right side
    830,535.42x = 474,653,738,122.90
  5. Step 5: Solve for x
    x = 474,653,738,122.90/830,535.42
  6. Step 6: Final answer
    x = 571,503.30

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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.