Home / 486,329.56-671,132.16-282,430.54

Finding the Fourth Proportional to 486,329.56, 671,132.16 and 282,430.54

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Solution

The fourth proportional to 486,329.56, 671,132.16 and 282,430.54 is: 389,752.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,329.56 : 671,132.16 = 282,430.54 : x
  2. Step 2: Convert to fraction form
    486,329.56/671,132.16 = 282,430.54/x
  3. Step 3: Cross multiply
    486,329.56x = 671,132.16 × 282,430.54
  4. Step 4: Simplify right side
    486,329.56x = 189,548,218,360.17
  5. Step 5: Solve for x
    x = 189,548,218,360.17/486,329.56
  6. Step 6: Final answer
    x = 389,752.62

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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.