Home / 1,261,064.32-1,740,307.25-717,278.47

Finding the Fourth Proportional to 1,261,064.32, 1,740,307.25 and 717,278.47

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Solution

The fourth proportional to 1,261,064.32, 1,740,307.25 and 717,278.47 is: 989,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,064.32 : 1,740,307.25 = 717,278.47 : x
  2. Step 2: Convert to fraction form
    1,261,064.32/1,740,307.25 = 717,278.47/x
  3. Step 3: Cross multiply
    1,261,064.32x = 1,740,307.25 × 717,278.47
  4. Step 4: Simplify right side
    1,261,064.32x = 1,248,284,919,052.34
  5. Step 5: Solve for x
    x = 1,248,284,919,052.34/1,261,064.32
  6. Step 6: Final answer
    x = 989,866.18

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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.