Home / 920,943.29-1,381,601.78-289,710.29

Finding the Fourth Proportional to 920,943.29, 1,381,601.78 and 289,710.29

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Solution

The fourth proportional to 920,943.29, 1,381,601.78 and 289,710.29 is: 434,624.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,943.29 : 1,381,601.78 = 289,710.29 : x
  2. Step 2: Convert to fraction form
    920,943.29/1,381,601.78 = 289,710.29/x
  3. Step 3: Cross multiply
    920,943.29x = 1,381,601.78 × 289,710.29
  4. Step 4: Simplify right side
    920,943.29x = 400,264,250,899.77
  5. Step 5: Solve for x
    x = 400,264,250,899.77/920,943.29
  6. Step 6: Final answer
    x = 434,624.21

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1.5x scale

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.