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Finding the Fourth Proportional to 556,044.36, 767,272.52 and 394,840.58

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Solution

The fourth proportional to 556,044.36, 767,272.52 and 394,840.58 is: 544,831.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,044.36 : 767,272.52 = 394,840.58 : x
  2. Step 2: Convert to fraction form
    556,044.36/767,272.52 = 394,840.58/x
  3. Step 3: Cross multiply
    556,044.36x = 767,272.52 × 394,840.58
  4. Step 4: Simplify right side
    556,044.36x = 302,950,326,814.86
  5. Step 5: Solve for x
    x = 302,950,326,814.86/556,044.36
  6. Step 6: Final answer
    x = 544,831.22

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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.