Home / 905,422.11-1,249,409.38-523,473.49

Finding the Fourth Proportional to 905,422.11, 1,249,409.38 and 523,473.49

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Solution

The fourth proportional to 905,422.11, 1,249,409.38 and 523,473.49 is: 722,351.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,422.11 : 1,249,409.38 = 523,473.49 : x
  2. Step 2: Convert to fraction form
    905,422.11/1,249,409.38 = 523,473.49/x
  3. Step 3: Cross multiply
    905,422.11x = 1,249,409.38 × 523,473.49
  4. Step 4: Simplify right side
    905,422.11x = 654,032,688,587.34
  5. Step 5: Solve for x
    x = 654,032,688,587.34/905,422.11
  6. Step 6: Final answer
    x = 722,351.13

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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.