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Finding the Fourth Proportional to 1,021,374, 1,409,505.84 and 568,674.72

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Solution

The fourth proportional to 1,021,374, 1,409,505.84 and 568,674.72 is: 784,776.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,374 : 1,409,505.84 = 568,674.72 : x
  2. Step 2: Convert to fraction form
    1,021,374/1,409,505.84 = 568,674.72/x
  3. Step 3: Cross multiply
    1,021,374x = 1,409,505.84 × 568,674.72
  4. Step 4: Simplify right side
    1,021,374x = 801,550,338,900.37
  5. Step 5: Solve for x
    x = 801,550,338,900.37/1,021,374
  6. Step 6: Final answer
    x = 784,776.53

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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.