Home / 816,240.07-1,126,728.12-612,878.23

Finding the Fourth Proportional to 816,240.07, 1,126,728.12 and 612,878.23

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Solution

The fourth proportional to 816,240.07, 1,126,728.12 and 612,878.23 is: 846,009.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,240.07 : 1,126,728.12 = 612,878.23 : x
  2. Step 2: Convert to fraction form
    816,240.07/1,126,728.12 = 612,878.23/x
  3. Step 3: Cross multiply
    816,240.07x = 1,126,728.12 × 612,878.23
  4. Step 4: Simplify right side
    816,240.07x = 690,547,135,876.83
  5. Step 5: Solve for x
    x = 690,547,135,876.83/816,240.07
  6. Step 6: Final answer
    x = 846,009.85

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1.5x scale

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.