Home / 816,948.60-1,225,422.90-248,328.60

Finding the Fourth Proportional to 816,948.60, 1,225,422.90 and 248,328.60

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Solution

The fourth proportional to 816,948.60, 1,225,422.90 and 248,328.60 is: 372,492.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,948.60 : 1,225,422.90 = 248,328.60 : x
  2. Step 2: Convert to fraction form
    816,948.60/1,225,422.90 = 248,328.60/x
  3. Step 3: Cross multiply
    816,948.60x = 1,225,422.90 × 248,328.60
  4. Step 4: Simplify right side
    816,948.60x = 304,307,553,164.94
  5. Step 5: Solve for x
    x = 304,307,553,164.94/816,948.60
  6. Step 6: Final answer
    x = 372,492.90

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Double scale
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Similar ratio
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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.