Home / 899,187.33-1,240,864.02-491,280.42

Finding the Fourth Proportional to 899,187.33, 1,240,864.02 and 491,280.42

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Solution

The fourth proportional to 899,187.33, 1,240,864.02 and 491,280.42 is: 677,959.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,187.33 : 1,240,864.02 = 491,280.42 : x
  2. Step 2: Convert to fraction form
    899,187.33/1,240,864.02 = 491,280.42/x
  3. Step 3: Cross multiply
    899,187.33x = 1,240,864.02 × 491,280.42
  4. Step 4: Simplify right side
    899,187.33x = 609,612,196,908.49
  5. Step 5: Solve for x
    x = 609,612,196,908.49/899,187.33
  6. Step 6: Final answer
    x = 677,959.06

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Double scale
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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.