Home / 904,666.81-1,248,461.88-491,221.02

Finding the Fourth Proportional to 904,666.81, 1,248,461.88 and 491,221.02

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Solution

The fourth proportional to 904,666.81, 1,248,461.88 and 491,221.02 is: 677,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,666.81 : 1,248,461.88 = 491,221.02 : x
  2. Step 2: Convert to fraction form
    904,666.81/1,248,461.88 = 491,221.02/x
  3. Step 3: Cross multiply
    904,666.81x = 1,248,461.88 × 491,221.02
  4. Step 4: Simplify right side
    904,666.81x = 613,270,718,124.72
  5. Step 5: Solve for x
    x = 613,270,718,124.72/904,666.81
  6. Step 6: Final answer
    x = 677,896.78

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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.