Home / 819,920.46-1,230,260.58-314,312.52

Finding the Fourth Proportional to 819,920.46, 1,230,260.58 and 314,312.52

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Solution

The fourth proportional to 819,920.46, 1,230,260.58 and 314,312.52 is: 471,614.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,920.46 : 1,230,260.58 = 314,312.52 : x
  2. Step 2: Convert to fraction form
    819,920.46/1,230,260.58 = 314,312.52/x
  3. Step 3: Cross multiply
    819,920.46x = 1,230,260.58 × 314,312.52
  4. Step 4: Simplify right side
    819,920.46x = 386,686,303,156.46
  5. Step 5: Solve for x
    x = 386,686,303,156.46/819,920.46
  6. Step 6: Final answer
    x = 471,614.41

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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.