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Finding the Fourth Proportional to 551,868, 761,406.67 and 322,259.65

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Solution

The fourth proportional to 551,868, 761,406.67 and 322,259.65 is: 444,618.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,868 : 761,406.67 = 322,259.65 : x
  2. Step 2: Convert to fraction form
    551,868/761,406.67 = 322,259.65/x
  3. Step 3: Cross multiply
    551,868x = 761,406.67 × 322,259.65
  4. Step 4: Simplify right side
    551,868x = 245,370,646,981.87
  5. Step 5: Solve for x
    x = 245,370,646,981.87/551,868
  6. Step 6: Final answer
    x = 444,618.36

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1.5x scale

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.