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Finding the Fourth Proportional to 478,582.41, 660,448.16 and 263,730.17

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Solution

The fourth proportional to 478,582.41, 660,448.16 and 263,730.17 is: 363,950.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,582.41 : 660,448.16 = 263,730.17 : x
  2. Step 2: Convert to fraction form
    478,582.41/660,448.16 = 263,730.17/x
  3. Step 3: Cross multiply
    478,582.41x = 660,448.16 × 263,730.17
  4. Step 4: Simplify right side
    478,582.41x = 174,180,105,512.99
  5. Step 5: Solve for x
    x = 174,180,105,512.99/478,582.41
  6. Step 6: Final answer
    x = 363,950.08

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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.