Home / 1,288,567.48-1,778,174.42-715,644.58

Finding the Fourth Proportional to 1,288,567.48, 1,778,174.42 and 715,644.58

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Solution

The fourth proportional to 1,288,567.48, 1,778,174.42 and 715,644.58 is: 987,562.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,567.48 : 1,778,174.42 = 715,644.58 : x
  2. Step 2: Convert to fraction form
    1,288,567.48/1,778,174.42 = 715,644.58/x
  3. Step 3: Cross multiply
    1,288,567.48x = 1,778,174.42 × 715,644.58
  4. Step 4: Simplify right side
    1,288,567.48x = 1,272,540,885,967.64
  5. Step 5: Solve for x
    x = 1,272,540,885,967.64/1,288,567.48
  6. Step 6: Final answer
    x = 987,562.47

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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.