Home / 3,485,139.90-5,220,711.45-1,987,482.30

Finding the Fourth Proportional to 3,485,139.90, 5,220,711.45 and 1,987,482.30

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Solution

The fourth proportional to 3,485,139.90, 5,220,711.45 and 1,987,482.30 is: 2,977,232.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485,139.90 : 5,220,711.45 = 1,987,482.30 : x
  2. Step 2: Convert to fraction form
    3,485,139.90/5,220,711.45 = 1,987,482.30/x
  3. Step 3: Cross multiply
    3,485,139.90x = 5,220,711.45 × 1,987,482.30
  4. Step 4: Simplify right side
    3,485,139.90x = 10,376,071,600,282.34
  5. Step 5: Solve for x
    x = 10,376,071,600,282.34/3,485,139.90
  6. Step 6: Final answer
    x = 2,977,232.45

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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.