Home / 1,280,659.80-1,767,378.54-736,878.20

Finding the Fourth Proportional to 1,280,659.80, 1,767,378.54 and 736,878.20

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Solution

The fourth proportional to 1,280,659.80, 1,767,378.54 and 736,878.20 is: 1,016,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,659.80 : 1,767,378.54 = 736,878.20 : x
  2. Step 2: Convert to fraction form
    1,280,659.80/1,767,378.54 = 736,878.20/x
  3. Step 3: Cross multiply
    1,280,659.80x = 1,767,378.54 × 736,878.20
  4. Step 4: Simplify right side
    1,280,659.80x = 1,302,342,717,273.83
  5. Step 5: Solve for x
    x = 1,302,342,717,273.83/1,280,659.80
  6. Step 6: Final answer
    x = 1,016,931.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.