Home / 821,703.20-1,232,554.80-655,815.20

Finding the Fourth Proportional to 821,703.20, 1,232,554.80 and 655,815.20

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Solution

The fourth proportional to 821,703.20, 1,232,554.80 and 655,815.20 is: 983,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,703.20 : 1,232,554.80 = 655,815.20 : x
  2. Step 2: Convert to fraction form
    821,703.20/1,232,554.80 = 655,815.20/x
  3. Step 3: Cross multiply
    821,703.20x = 1,232,554.80 × 655,815.20
  4. Step 4: Simplify right side
    821,703.20x = 808,328,172,672.96
  5. Step 5: Solve for x
    x = 808,328,172,672.96/821,703.20
  6. Step 6: Final answer
    x = 983,722.80

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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.