Home / 1,869,013.20-2,579,133.24-1,105,312.80

Finding the Fourth Proportional to 1,869,013.20, 2,579,133.24 and 1,105,312.80

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Solution

The fourth proportional to 1,869,013.20, 2,579,133.24 and 1,105,312.80 is: 1,525,269.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,013.20 : 2,579,133.24 = 1,105,312.80 : x
  2. Step 2: Convert to fraction form
    1,869,013.20/2,579,133.24 = 1,105,312.80/x
  3. Step 3: Cross multiply
    1,869,013.20x = 2,579,133.24 × 1,105,312.80
  4. Step 4: Simplify right side
    1,869,013.20x = 2,850,748,983,077.47
  5. Step 5: Solve for x
    x = 2,850,748,983,077.47/1,869,013.20
  6. Step 6: Final answer
    x = 1,525,269.58

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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.