Home / 1,221,293.28-1,832,106.24-422,360.40

Finding the Fourth Proportional to 1,221,293.28, 1,832,106.24 and 422,360.40

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Solution

The fourth proportional to 1,221,293.28, 1,832,106.24 and 422,360.40 is: 633,598.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,293.28 : 1,832,106.24 = 422,360.40 : x
  2. Step 2: Convert to fraction form
    1,221,293.28/1,832,106.24 = 422,360.40/x
  3. Step 3: Cross multiply
    1,221,293.28x = 1,832,106.24 × 422,360.40
  4. Step 4: Simplify right side
    1,221,293.28x = 773,809,124,368.90
  5. Step 5: Solve for x
    x = 773,809,124,368.90/1,221,293.28
  6. Step 6: Final answer
    x = 633,598.12

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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.