Home / 877,515.25-1,316,272.88-212,667.25

Finding the Fourth Proportional to 877,515.25, 1,316,272.88 and 212,667.25

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Solution

The fourth proportional to 877,515.25, 1,316,272.88 and 212,667.25 is: 319,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,515.25 : 1,316,272.88 = 212,667.25 : x
  2. Step 2: Convert to fraction form
    877,515.25/1,316,272.88 = 212,667.25/x
  3. Step 3: Cross multiply
    877,515.25x = 1,316,272.88 × 212,667.25
  4. Step 4: Simplify right side
    877,515.25x = 279,928,133,639.18
  5. Step 5: Solve for x
    x = 279,928,133,639.18/877,515.25
  6. Step 6: Final answer
    x = 319,000.88

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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.