Home / 1,345,138.11-2,018,188.31-576,312.84

Finding the Fourth Proportional to 1,345,138.11, 2,018,188.31 and 576,312.84

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Solution

The fourth proportional to 1,345,138.11, 2,018,188.31 and 576,312.84 is: 864,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,138.11 : 2,018,188.31 = 576,312.84 : x
  2. Step 2: Convert to fraction form
    1,345,138.11/2,018,188.31 = 576,312.84/x
  3. Step 3: Cross multiply
    1,345,138.11x = 2,018,188.31 × 576,312.84
  4. Step 4: Simplify right side
    1,345,138.11x = 1,163,107,833,709.34
  5. Step 5: Solve for x
    x = 1,163,107,833,709.34/1,345,138.11
  6. Step 6: Final answer
    x = 864,675.40

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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.