Home / 1,385,139.90-2,074,210.65-1,105,203.90

Finding the Fourth Proportional to 1,385,139.90, 2,074,210.65 and 1,105,203.90

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Solution

The fourth proportional to 1,385,139.90, 2,074,210.65 and 1,105,203.90 is: 1,655,013.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,139.90 : 2,074,210.65 = 1,105,203.90 : x
  2. Step 2: Convert to fraction form
    1,385,139.90/2,074,210.65 = 1,105,203.90/x
  3. Step 3: Cross multiply
    1,385,139.90x = 2,074,210.65 × 1,105,203.90
  4. Step 4: Simplify right side
    1,385,139.90x = 2,292,425,699,801.53
  5. Step 5: Solve for x
    x = 2,292,425,699,801.53/1,385,139.90
  6. Step 6: Final answer
    x = 1,655,013.84

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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.