Home / 1,276,023.35-1,913,985.51-316,481.35

Finding the Fourth Proportional to 1,276,023.35, 1,913,985.51 and 316,481.35

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Solution

The fourth proportional to 1,276,023.35, 1,913,985.51 and 316,481.35 is: 474,709.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,023.35 : 1,913,985.51 = 316,481.35 : x
  2. Step 2: Convert to fraction form
    1,276,023.35/1,913,985.51 = 316,481.35/x
  3. Step 3: Cross multiply
    1,276,023.35x = 1,913,985.51 × 316,481.35
  4. Step 4: Simplify right side
    1,276,023.35x = 605,740,721,975.38
  5. Step 5: Solve for x
    x = 605,740,721,975.38/1,276,023.35
  6. Step 6: Final answer
    x = 474,709.75

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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.