Home / 1,057,139.52-1,585,695.42-258,428.04

Finding the Fourth Proportional to 1,057,139.52, 1,585,695.42 and 258,428.04

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Solution

The fourth proportional to 1,057,139.52, 1,585,695.42 and 258,428.04 is: 387,638.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,139.52 : 1,585,695.42 = 258,428.04 : x
  2. Step 2: Convert to fraction form
    1,057,139.52/1,585,695.42 = 258,428.04/x
  3. Step 3: Cross multiply
    1,057,139.52x = 1,585,695.42 × 258,428.04
  4. Step 4: Simplify right side
    1,057,139.52x = 409,788,159,427.58
  5. Step 5: Solve for x
    x = 409,788,159,427.58/1,057,139.52
  6. Step 6: Final answer
    x = 387,638.67

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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.