Home / 3,918,217.34-5,877,358.85-1,078,485.32

Finding the Fourth Proportional to 3,918,217.34, 5,877,358.85 and 1,078,485.32

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Solution

The fourth proportional to 3,918,217.34, 5,877,358.85 and 1,078,485.32 is: 1,617,737.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,217.34 : 5,877,358.85 = 1,078,485.32 : x
  2. Step 2: Convert to fraction form
    3,918,217.34/5,877,358.85 = 1,078,485.32/x
  3. Step 3: Cross multiply
    3,918,217.34x = 5,877,358.85 × 1,078,485.32
  4. Step 4: Simplify right side
    3,918,217.34x = 6,338,645,249,398.05
  5. Step 5: Solve for x
    x = 6,338,645,249,398.05/3,918,217.34
  6. Step 6: Final answer
    x = 1,617,737.02

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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.