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Finding the Fourth Proportional to 478,798.43, 660,746.43 and 263,946.17

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Solution

The fourth proportional to 478,798.43, 660,746.43 and 263,946.17 is: 364,248.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,798.43 : 660,746.43 = 263,946.17 : x
  2. Step 2: Convert to fraction form
    478,798.43/660,746.43 = 263,946.17/x
  3. Step 3: Cross multiply
    478,798.43x = 660,746.43 × 263,946.17
  4. Step 4: Simplify right side
    478,798.43x = 174,401,489,539.67
  5. Step 5: Solve for x
    x = 174,401,489,539.67/478,798.43
  6. Step 6: Final answer
    x = 364,248.25

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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.