Home / 830,924.88-1,245,888.52-381,082.20

Finding the Fourth Proportional to 830,924.88, 1,245,888.52 and 381,082.20

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Solution

The fourth proportional to 830,924.88, 1,245,888.52 and 381,082.20 is: 571,394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,924.88 : 1,245,888.52 = 381,082.20 : x
  2. Step 2: Convert to fraction form
    830,924.88/1,245,888.52 = 381,082.20/x
  3. Step 3: Cross multiply
    830,924.88x = 1,245,888.52 × 381,082.20
  4. Step 4: Simplify right side
    830,924.88x = 474,785,938,156.34
  5. Step 5: Solve for x
    x = 474,785,938,156.34/830,924.88
  6. Step 6: Final answer
    x = 571,394.54

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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.