Home / 812,235.65-1,121,002.49-468,005.67

Finding the Fourth Proportional to 812,235.65, 1,121,002.49 and 468,005.67

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Solution

The fourth proportional to 812,235.65, 1,121,002.49 and 468,005.67 is: 645,915.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,235.65 : 1,121,002.49 = 468,005.67 : x
  2. Step 2: Convert to fraction form
    812,235.65/1,121,002.49 = 468,005.67/x
  3. Step 3: Cross multiply
    812,235.65x = 1,121,002.49 × 468,005.67
  4. Step 4: Simplify right side
    812,235.65x = 524,635,522,574.13
  5. Step 5: Solve for x
    x = 524,635,522,574.13/812,235.65
  6. Step 6: Final answer
    x = 645,915.41

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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.