Home / 853,786.95-1,281,547.02-427,628.13

Finding the Fourth Proportional to 853,786.95, 1,281,547.02 and 427,628.13

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Solution

The fourth proportional to 853,786.95, 1,281,547.02 and 427,628.13 is: 641,876.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,786.95 : 1,281,547.02 = 427,628.13 : x
  2. Step 2: Convert to fraction form
    853,786.95/1,281,547.02 = 427,628.13/x
  3. Step 3: Cross multiply
    853,786.95x = 1,281,547.02 × 427,628.13
  4. Step 4: Simplify right side
    853,786.95x = 548,025,557,273.28
  5. Step 5: Solve for x
    x = 548,025,557,273.28/853,786.95
  6. Step 6: Final answer
    x = 641,876.24

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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.