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Finding the Fourth Proportional to 551,162.04, 760,544.86 and 309,471

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Solution

The fourth proportional to 551,162.04, 760,544.86 and 309,471 is: 427,036.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,162.04 : 760,544.86 = 309,471 : x
  2. Step 2: Convert to fraction form
    551,162.04/760,544.86 = 309,471/x
  3. Step 3: Cross multiply
    551,162.04x = 760,544.86 × 309,471
  4. Step 4: Simplify right side
    551,162.04x = 235,366,578,369.06
  5. Step 5: Solve for x
    x = 235,366,578,369.06/551,162.04
  6. Step 6: Final answer
    x = 427,036.99

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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.