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Finding the Fourth Proportional to 507,781.80, 700,813.49 and 292,879.89

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Solution

The fourth proportional to 507,781.80, 700,813.49 and 292,879.89 is: 404,217.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,781.80 : 700,813.49 = 292,879.89 : x
  2. Step 2: Convert to fraction form
    507,781.80/700,813.49 = 292,879.89/x
  3. Step 3: Cross multiply
    507,781.80x = 700,813.49 × 292,879.89
  4. Step 4: Simplify right side
    507,781.80x = 205,254,176,397.32
  5. Step 5: Solve for x
    x = 205,254,176,397.32/507,781.80
  6. Step 6: Final answer
    x = 404,217.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.