Home / 877,806.25-1,211,372.63-475,398.25

Finding the Fourth Proportional to 877,806.25, 1,211,372.63 and 475,398.25

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Solution

The fourth proportional to 877,806.25, 1,211,372.63 and 475,398.25 is: 656,049.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,806.25 : 1,211,372.63 = 475,398.25 : x
  2. Step 2: Convert to fraction form
    877,806.25/1,211,372.63 = 475,398.25/x
  3. Step 3: Cross multiply
    877,806.25x = 1,211,372.63 × 475,398.25
  4. Step 4: Simplify right side
    877,806.25x = 575,884,428,399.90
  5. Step 5: Solve for x
    x = 575,884,428,399.90/877,806.25
  6. Step 6: Final answer
    x = 656,049.59

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Double scale
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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.