Home / 920,343.58-1,270,058.97-538,435.06

Finding the Fourth Proportional to 920,343.58, 1,270,058.97 and 538,435.06

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Solution

The fourth proportional to 920,343.58, 1,270,058.97 and 538,435.06 is: 743,031.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,343.58 : 1,270,058.97 = 538,435.06 : x
  2. Step 2: Convert to fraction form
    920,343.58/1,270,058.97 = 538,435.06/x
  3. Step 3: Cross multiply
    920,343.58x = 1,270,058.97 × 538,435.06
  4. Step 4: Simplify right side
    920,343.58x = 683,844,276,559.47
  5. Step 5: Solve for x
    x = 683,844,276,559.47/920,343.58
  6. Step 6: Final answer
    x = 743,031.51

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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.