Home / 1,115,309.47-1,672,960.84-316,591.69

Finding the Fourth Proportional to 1,115,309.47, 1,672,960.84 and 316,591.69

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Solution

The fourth proportional to 1,115,309.47, 1,672,960.84 and 316,591.69 is: 474,886.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,309.47 : 1,672,960.84 = 316,591.69 : x
  2. Step 2: Convert to fraction form
    1,115,309.47/1,672,960.84 = 316,591.69/x
  3. Step 3: Cross multiply
    1,115,309.47x = 1,672,960.84 × 316,591.69
  4. Step 4: Simplify right side
    1,115,309.47x = 529,645,495,852.76
  5. Step 5: Solve for x
    x = 529,645,495,852.76/1,115,309.47
  6. Step 6: Final answer
    x = 474,886.58

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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.