Home / 2,630,410.80-3,938,617.80-1,678,628.40

Finding the Fourth Proportional to 2,630,410.80, 3,938,617.80 and 1,678,628.40

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Solution

The fourth proportional to 2,630,410.80, 3,938,617.80 and 1,678,628.40 is: 2,513,476.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630,410.80 : 3,938,617.80 = 1,678,628.40 : x
  2. Step 2: Convert to fraction form
    2,630,410.80/3,938,617.80 = 1,678,628.40/x
  3. Step 3: Cross multiply
    2,630,410.80x = 3,938,617.80 × 1,678,628.40
  4. Step 4: Simplify right side
    2,630,410.80x = 6,611,475,695,825.52
  5. Step 5: Solve for x
    x = 6,611,475,695,825.52/2,630,410.80
  6. Step 6: Final answer
    x = 2,513,476.49

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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.