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Finding the Fourth Proportional to 675,445.68, 1,012,165.90 and 375,513.68

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Solution

The fourth proportional to 675,445.68, 1,012,165.90 and 375,513.68 is: 562,713.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,445.68 : 1,012,165.90 = 375,513.68 : x
  2. Step 2: Convert to fraction form
    675,445.68/1,012,165.90 = 375,513.68/x
  3. Step 3: Cross multiply
    675,445.68x = 1,012,165.90 × 375,513.68
  4. Step 4: Simplify right side
    675,445.68x = 380,082,141,879.51
  5. Step 5: Solve for x
    x = 380,082,141,879.51/675,445.68
  6. Step 6: Final answer
    x = 562,713.11

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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.