Home / 920,862.95-1,381,508.10-289,760.36

Finding the Fourth Proportional to 920,862.95, 1,381,508.10 and 289,760.36

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Solution

The fourth proportional to 920,862.95, 1,381,508.10 and 289,760.36 is: 434,707.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,862.95 : 1,381,508.10 = 289,760.36 : x
  2. Step 2: Convert to fraction form
    920,862.95/1,381,508.10 = 289,760.36/x
  3. Step 3: Cross multiply
    920,862.95x = 1,381,508.10 × 289,760.36
  4. Step 4: Simplify right side
    920,862.95x = 400,306,277,491.38
  5. Step 5: Solve for x
    x = 400,306,277,491.38/920,862.95
  6. Step 6: Final answer
    x = 434,707.77

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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.