Home / 870,568.98-1,201,502.43-488,616.66

Finding the Fourth Proportional to 870,568.98, 1,201,502.43 and 488,616.66

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Solution

The fourth proportional to 870,568.98, 1,201,502.43 and 488,616.66 is: 674,356.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,568.98 : 1,201,502.43 = 488,616.66 : x
  2. Step 2: Convert to fraction form
    870,568.98/1,201,502.43 = 488,616.66/x
  3. Step 3: Cross multiply
    870,568.98x = 1,201,502.43 × 488,616.66
  4. Step 4: Simplify right side
    870,568.98x = 587,074,104,328.48
  5. Step 5: Solve for x
    x = 587,074,104,328.48/870,568.98
  6. Step 6: Final answer
    x = 674,356.79

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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.