Home / 1,385,043.16-2,078,353.98-1,106,331.88

Finding the Fourth Proportional to 1,385,043.16, 2,078,353.98 and 1,106,331.88

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Solution

The fourth proportional to 1,385,043.16, 2,078,353.98 and 1,106,331.88 is: 1,660,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,043.16 : 2,078,353.98 = 1,106,331.88 : x
  2. Step 2: Convert to fraction form
    1,385,043.16/2,078,353.98 = 1,106,331.88/x
  3. Step 3: Cross multiply
    1,385,043.16x = 2,078,353.98 × 1,106,331.88
  4. Step 4: Simplify right side
    1,385,043.16x = 2,299,349,265,998.88
  5. Step 5: Solve for x
    x = 2,299,349,265,998.88/1,385,043.16
  6. Step 6: Final answer
    x = 1,660,128.24

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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.