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Finding the Fourth Proportional to 556,953.06, 768,994.65 and 342,380.82

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Solution

The fourth proportional to 556,953.06, 768,994.65 and 342,380.82 is: 472,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,953.06 : 768,994.65 = 342,380.82 : x
  2. Step 2: Convert to fraction form
    556,953.06/768,994.65 = 342,380.82/x
  3. Step 3: Cross multiply
    556,953.06x = 768,994.65 × 342,380.82
  4. Step 4: Simplify right side
    556,953.06x = 263,289,018,842.61
  5. Step 5: Solve for x
    x = 263,289,018,842.61/556,953.06
  6. Step 6: Final answer
    x = 472,731.08

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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.