Home / 1,121,103.84-1,547,156.16-611,839.20

Finding the Fourth Proportional to 1,121,103.84, 1,547,156.16 and 611,839.20

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Solution

The fourth proportional to 1,121,103.84, 1,547,156.16 and 611,839.20 is: 844,356.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,103.84 : 1,547,156.16 = 611,839.20 : x
  2. Step 2: Convert to fraction form
    1,121,103.84/1,547,156.16 = 611,839.20/x
  3. Step 3: Cross multiply
    1,121,103.84x = 1,547,156.16 × 611,839.20
  4. Step 4: Simplify right side
    1,121,103.84x = 946,610,787,209.47
  5. Step 5: Solve for x
    x = 946,610,787,209.47/1,121,103.84
  6. Step 6: Final answer
    x = 844,356.03

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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.