Home / 870,673.09-1,201,462.95-488,626.06

Finding the Fourth Proportional to 870,673.09, 1,201,462.95 and 488,626.06

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Solution

The fourth proportional to 870,673.09, 1,201,462.95 and 488,626.06 is: 674,266.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,673.09 : 1,201,462.95 = 488,626.06 : x
  2. Step 2: Convert to fraction form
    870,673.09/1,201,462.95 = 488,626.06/x
  3. Step 3: Cross multiply
    870,673.09x = 1,201,462.95 × 488,626.06
  4. Step 4: Simplify right side
    870,673.09x = 587,066,107,494.48
  5. Step 5: Solve for x
    x = 587,066,107,494.48/870,673.09
  6. Step 6: Final answer
    x = 674,266.97

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1.5x scale

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.