Home / 823,248.40-1,236,139.80-450,000.40

Finding the Fourth Proportional to 823,248.40, 1,236,139.80 and 450,000.40

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Solution

The fourth proportional to 823,248.40, 1,236,139.80 and 450,000.40 is: 675,693.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,248.40 : 1,236,139.80 = 450,000.40 : x
  2. Step 2: Convert to fraction form
    823,248.40/1,236,139.80 = 450,000.40/x
  3. Step 3: Cross multiply
    823,248.40x = 1,236,139.80 × 450,000.40
  4. Step 4: Simplify right side
    823,248.40x = 556,263,404,455.92
  5. Step 5: Solve for x
    x = 556,263,404,455.92/823,248.40
  6. Step 6: Final answer
    x = 675,693.27

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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.