Home / 1,009,768.68-1,513,209.60-741,423.78

Finding the Fourth Proportional to 1,009,768.68, 1,513,209.60 and 741,423.78

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Solution

The fourth proportional to 1,009,768.68, 1,513,209.60 and 741,423.78 is: 1,111,075.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,768.68 : 1,513,209.60 = 741,423.78 : x
  2. Step 2: Convert to fraction form
    1,009,768.68/1,513,209.60 = 741,423.78/x
  3. Step 3: Cross multiply
    1,009,768.68x = 1,513,209.60 × 741,423.78
  4. Step 4: Simplify right side
    1,009,768.68x = 1,121,929,581,564.29
  5. Step 5: Solve for x
    x = 1,121,929,581,564.29/1,009,768.68
  6. Step 6: Final answer
    x = 1,111,075.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.