Home / 877,998.40-1,316,997.60-213,150.40

Finding the Fourth Proportional to 877,998.40, 1,316,997.60 and 213,150.40

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Solution

The fourth proportional to 877,998.40, 1,316,997.60 and 213,150.40 is: 319,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,998.40 : 1,316,997.60 = 213,150.40 : x
  2. Step 2: Convert to fraction form
    877,998.40/1,316,997.60 = 213,150.40/x
  3. Step 3: Cross multiply
    877,998.40x = 1,316,997.60 × 213,150.40
  4. Step 4: Simplify right side
    877,998.40x = 280,718,565,239.04
  5. Step 5: Solve for x
    x = 280,718,565,239.04/877,998.40
  6. Step 6: Final answer
    x = 319,725.60

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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.