Home / 1,214,886.40-1,822,329.60-328,422.40

Finding the Fourth Proportional to 1,214,886.40, 1,822,329.60 and 328,422.40

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Solution

The fourth proportional to 1,214,886.40, 1,822,329.60 and 328,422.40 is: 492,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,886.40 : 1,822,329.60 = 328,422.40 : x
  2. Step 2: Convert to fraction form
    1,214,886.40/1,822,329.60 = 328,422.40/x
  3. Step 3: Cross multiply
    1,214,886.40x = 1,822,329.60 × 328,422.40
  4. Step 4: Simplify right side
    1,214,886.40x = 598,493,860,823.04
  5. Step 5: Solve for x
    x = 598,493,860,823.04/1,214,886.40
  6. Step 6: Final answer
    x = 492,633.60

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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.