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Finding the Fourth Proportional to 618,370.48, 931,767.73 and 508,511.44

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Solution

The fourth proportional to 618,370.48, 931,767.73 and 508,511.44 is: 766,230.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,370.48 : 931,767.73 = 508,511.44 : x
  2. Step 2: Convert to fraction form
    618,370.48/931,767.73 = 508,511.44/x
  3. Step 3: Cross multiply
    618,370.48x = 931,767.73 × 508,511.44
  4. Step 4: Simplify right side
    618,370.48x = 473,814,550,127.83
  5. Step 5: Solve for x
    x = 473,814,550,127.83/618,370.48
  6. Step 6: Final answer
    x = 766,230.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.