Home / 870,853.42-1,201,711.36-488,806.39

Finding the Fourth Proportional to 870,853.42, 1,201,711.36 and 488,806.39

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Solution

The fourth proportional to 870,853.42, 1,201,711.36 and 488,806.39 is: 674,515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,853.42 : 1,201,711.36 = 488,806.39 : x
  2. Step 2: Convert to fraction form
    870,853.42/1,201,711.36 = 488,806.39/x
  3. Step 3: Cross multiply
    870,853.42x = 1,201,711.36 × 488,806.39
  4. Step 4: Simplify right side
    870,853.42x = 587,404,191,703.59
  5. Step 5: Solve for x
    x = 587,404,191,703.59/870,853.42
  6. Step 6: Final answer
    x = 674,515.57

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Double scale
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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.