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Finding the Fourth Proportional to 626,544.92, 864,632.81 and 340,065

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Solution

The fourth proportional to 626,544.92, 864,632.81 and 340,065 is: 469,290.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,544.92 : 864,632.81 = 340,065 : x
  2. Step 2: Convert to fraction form
    626,544.92/864,632.81 = 340,065/x
  3. Step 3: Cross multiply
    626,544.92x = 864,632.81 × 340,065
  4. Step 4: Simplify right side
    626,544.92x = 294,031,357,382.81
  5. Step 5: Solve for x
    x = 294,031,357,382.81/626,544.92
  6. Step 6: Final answer
    x = 469,290.14

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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.