Home / 1,287,955.66-1,777,386.74-707,203.88

Finding the Fourth Proportional to 1,287,955.66, 1,777,386.74 and 707,203.88

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Solution

The fourth proportional to 1,287,955.66, 1,777,386.74 and 707,203.88 is: 975,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,955.66 : 1,777,386.74 = 707,203.88 : x
  2. Step 2: Convert to fraction form
    1,287,955.66/1,777,386.74 = 707,203.88/x
  3. Step 3: Cross multiply
    1,287,955.66x = 1,777,386.74 × 707,203.88
  4. Step 4: Simplify right side
    1,287,955.66x = 1,256,974,798,788.55
  5. Step 5: Solve for x
    x = 1,256,974,798,788.55/1,287,955.66
  6. Step 6: Final answer
    x = 975,945.71

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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.