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Finding the Fourth Proportional to 478,324.74, 660,088.07 and 263,464.80

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Solution

The fourth proportional to 478,324.74, 660,088.07 and 263,464.80 is: 363,581.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,324.74 : 660,088.07 = 263,464.80 : x
  2. Step 2: Convert to fraction form
    478,324.74/660,088.07 = 263,464.80/x
  3. Step 3: Cross multiply
    478,324.74x = 660,088.07 × 263,464.80
  4. Step 4: Simplify right side
    478,324.74x = 173,909,966,727.17
  5. Step 5: Solve for x
    x = 173,909,966,727.17/478,324.74
  6. Step 6: Final answer
    x = 363,581.38

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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.