Home / 884,437.63-1,220,370.91-521,834.11

Finding the Fourth Proportional to 884,437.63, 1,220,370.91 and 521,834.11

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Solution

The fourth proportional to 884,437.63, 1,220,370.91 and 521,834.11 is: 720,040.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,437.63 : 1,220,370.91 = 521,834.11 : x
  2. Step 2: Convert to fraction form
    884,437.63/1,220,370.91 = 521,834.11/x
  3. Step 3: Cross multiply
    884,437.63x = 1,220,370.91 × 521,834.11
  4. Step 4: Simplify right side
    884,437.63x = 636,831,167,689.74
  5. Step 5: Solve for x
    x = 636,831,167,689.74/884,437.63
  6. Step 6: Final answer
    x = 720,040.79

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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.