Home / 763,320.28-1,053,340.87-423,766.66

Finding the Fourth Proportional to 763,320.28, 1,053,340.87 and 423,766.66

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Solution

The fourth proportional to 763,320.28, 1,053,340.87 and 423,766.66 is: 584,775.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,320.28 : 1,053,340.87 = 423,766.66 : x
  2. Step 2: Convert to fraction form
    763,320.28/1,053,340.87 = 423,766.66/x
  3. Step 3: Cross multiply
    763,320.28x = 1,053,340.87 × 423,766.66
  4. Step 4: Simplify right side
    763,320.28x = 446,370,742,321.39
  5. Step 5: Solve for x
    x = 446,370,742,321.39/763,320.28
  6. Step 6: Final answer
    x = 584,775.16

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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.