Home / 636,885.02-878,908.30-346,498.24

Finding the Fourth Proportional to 636,885.02, 878,908.30 and 346,498.24

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Solution

The fourth proportional to 636,885.02, 878,908.30 and 346,498.24 is: 478,171.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,885.02 : 878,908.30 = 346,498.24 : x
  2. Step 2: Convert to fraction form
    636,885.02/878,908.30 = 346,498.24/x
  3. Step 3: Cross multiply
    636,885.02x = 878,908.30 × 346,498.24
  4. Step 4: Simplify right side
    636,885.02x = 304,540,179,071.39
  5. Step 5: Solve for x
    x = 304,540,179,071.39/636,885.02
  6. Step 6: Final answer
    x = 478,171.36

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Similar ratio
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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.