Home / 1,115,176.95-1,672,829.15-316,395.45

Finding the Fourth Proportional to 1,115,176.95, 1,672,829.15 and 316,395.45

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Solution

The fourth proportional to 1,115,176.95, 1,672,829.15 and 316,395.45 is: 474,611.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,176.95 : 1,672,829.15 = 316,395.45 : x
  2. Step 2: Convert to fraction form
    1,115,176.95/1,672,829.15 = 316,395.45/x
  3. Step 3: Cross multiply
    1,115,176.95x = 1,672,829.15 × 316,395.45
  4. Step 4: Simplify right side
    1,115,176.95x = 529,275,530,105.39
  5. Step 5: Solve for x
    x = 529,275,530,105.39/1,115,176.95
  6. Step 6: Final answer
    x = 474,611.25

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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.