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Finding the Fourth Proportional to 478,708.18, 660,613.98 and 263,848.36

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Solution

The fourth proportional to 478,708.18, 660,613.98 and 263,848.36 is: 364,108.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,708.18 : 660,613.98 = 263,848.36 : x
  2. Step 2: Convert to fraction form
    478,708.18/660,613.98 = 263,848.36/x
  3. Step 3: Cross multiply
    478,708.18x = 660,613.98 × 263,848.36
  4. Step 4: Simplify right side
    478,708.18x = 174,301,915,216.07
  5. Step 5: Solve for x
    x = 174,301,915,216.07/478,708.18
  6. Step 6: Final answer
    x = 364,108.91

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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.