Home / 1,781,215.80-2,666,793.60-1,386,462.30

Finding the Fourth Proportional to 1,781,215.80, 2,666,793.60 and 1,386,462.30

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Solution

The fourth proportional to 1,781,215.80, 2,666,793.60 and 1,386,462.30 is: 2,075,778.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,215.80 : 2,666,793.60 = 1,386,462.30 : x
  2. Step 2: Convert to fraction form
    1,781,215.80/2,666,793.60 = 1,386,462.30/x
  3. Step 3: Cross multiply
    1,781,215.80x = 2,666,793.60 × 1,386,462.30
  4. Step 4: Simplify right side
    1,781,215.80x = 3,697,408,788,281.28
  5. Step 5: Solve for x
    x = 3,697,408,788,281.28/1,781,215.80
  6. Step 6: Final answer
    x = 2,075,778.12

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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.