Home / 748,392-1,122,075.60-268,609.15

Finding the Fourth Proportional to 748,392, 1,122,075.60 and 268,609.15

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Solution

The fourth proportional to 748,392, 1,122,075.60 and 268,609.15 is: 402,729.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,392 : 1,122,075.60 = 268,609.15 : x
  2. Step 2: Convert to fraction form
    748,392/1,122,075.60 = 268,609.15/x
  3. Step 3: Cross multiply
    748,392x = 1,122,075.60 × 268,609.15
  4. Step 4: Simplify right side
    748,392x = 301,399,773,151.74
  5. Step 5: Solve for x
    x = 301,399,773,151.74/748,392
  6. Step 6: Final answer
    x = 402,729.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.