Home / 877,519.64-1,316,279.46-212,671.64

Finding the Fourth Proportional to 877,519.64, 1,316,279.46 and 212,671.64

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Solution

The fourth proportional to 877,519.64, 1,316,279.46 and 212,671.64 is: 319,007.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,519.64 : 1,316,279.46 = 212,671.64 : x
  2. Step 2: Convert to fraction form
    877,519.64/1,316,279.46 = 212,671.64/x
  3. Step 3: Cross multiply
    877,519.64x = 1,316,279.46 × 212,671.64
  4. Step 4: Simplify right side
    877,519.64x = 279,935,311,456.51
  5. Step 5: Solve for x
    x = 279,935,311,456.51/877,519.64
  6. Step 6: Final answer
    x = 319,007.46

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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.