Home / 877,498.32-1,315,975.28-316,459.92

Finding the Fourth Proportional to 877,498.32, 1,315,975.28 and 316,459.92

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Solution

The fourth proportional to 877,498.32, 1,315,975.28 and 316,459.92 is: 474,591.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,498.32 : 1,315,975.28 = 316,459.92 : x
  2. Step 2: Convert to fraction form
    877,498.32/1,315,975.28 = 316,459.92/x
  3. Step 3: Cross multiply
    877,498.32x = 1,315,975.28 × 316,459.92
  4. Step 4: Simplify right side
    877,498.32x = 416,453,431,830.78
  5. Step 5: Solve for x
    x = 416,453,431,830.78/877,498.32
  6. Step 6: Final answer
    x = 474,591.71

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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.