Home / 1,260,642.69-1,890,980.74-396,049.40

Finding the Fourth Proportional to 1,260,642.69, 1,890,980.74 and 396,049.40

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Solution

The fourth proportional to 1,260,642.69, 1,890,980.74 and 396,049.40 is: 594,079.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,642.69 : 1,890,980.74 = 396,049.40 : x
  2. Step 2: Convert to fraction form
    1,260,642.69/1,890,980.74 = 396,049.40/x
  3. Step 3: Cross multiply
    1,260,642.69x = 1,890,980.74 × 396,049.40
  4. Step 4: Simplify right side
    1,260,642.69x = 748,921,785,619.89
  5. Step 5: Solve for x
    x = 748,921,785,619.89/1,260,642.69
  6. Step 6: Final answer
    x = 594,079.35

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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.