Home / 877,515.63-1,316,273.46-212,667.63

Finding the Fourth Proportional to 877,515.63, 1,316,273.46 and 212,667.63

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Solution

The fourth proportional to 877,515.63, 1,316,273.46 and 212,667.63 is: 319,001.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,515.63 : 1,316,273.46 = 212,667.63 : x
  2. Step 2: Convert to fraction form
    877,515.63/1,316,273.46 = 212,667.63/x
  3. Step 3: Cross multiply
    877,515.63x = 1,316,273.46 × 212,667.63
  4. Step 4: Simplify right side
    877,515.63x = 279,928,757,170.10
  5. Step 5: Solve for x
    x = 279,928,757,170.10/877,515.63
  6. Step 6: Final answer
    x = 319,001.45

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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.