Home / 3,478,205.40-5,210,856.90-1,977,840.60

Finding the Fourth Proportional to 3,478,205.40, 5,210,856.90 and 1,977,840.60

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Solution

The fourth proportional to 3,478,205.40, 5,210,856.90 and 1,977,840.60 is: 2,963,092.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478,205.40 : 5,210,856.90 = 1,977,840.60 : x
  2. Step 2: Convert to fraction form
    3,478,205.40/5,210,856.90 = 1,977,840.60/x
  3. Step 3: Cross multiply
    3,478,205.40x = 5,210,856.90 × 1,977,840.60
  4. Step 4: Simplify right side
    3,478,205.40x = 10,306,244,337,610.14
  5. Step 5: Solve for x
    x = 10,306,244,337,610.14/3,478,205.40
  6. Step 6: Final answer
    x = 2,963,092.50

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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.