Home / 1,264,411.10-1,896,616.65-665,140.70

Finding the Fourth Proportional to 1,264,411.10, 1,896,616.65 and 665,140.70

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Solution

The fourth proportional to 1,264,411.10, 1,896,616.65 and 665,140.70 is: 997,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,411.10 : 1,896,616.65 = 665,140.70 : x
  2. Step 2: Convert to fraction form
    1,264,411.10/1,896,616.65 = 665,140.70/x
  3. Step 3: Cross multiply
    1,264,411.10x = 1,896,616.65 × 665,140.70
  4. Step 4: Simplify right side
    1,264,411.10x = 1,261,516,926,212.65
  5. Step 5: Solve for x
    x = 1,261,516,926,212.65/1,264,411.10
  6. Step 6: Final answer
    x = 997,711.05

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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.