Home / 877,387.32-1,316,080.97-316,421.82

Finding the Fourth Proportional to 877,387.32, 1,316,080.97 and 316,421.82

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Solution

The fourth proportional to 877,387.32, 1,316,080.97 and 316,421.82 is: 474,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,387.32 : 1,316,080.97 = 316,421.82 : x
  2. Step 2: Convert to fraction form
    877,387.32/1,316,080.97 = 316,421.82/x
  3. Step 3: Cross multiply
    877,387.32x = 1,316,080.97 × 316,421.82
  4. Step 4: Simplify right side
    877,387.32x = 416,436,735,794.77
  5. Step 5: Solve for x
    x = 416,436,735,794.77/877,387.32
  6. Step 6: Final answer
    x = 474,632.73

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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.