Home / 2,125,578-3,188,355.09-528,140.40

Finding the Fourth Proportional to 2,125,578, 3,188,355.09 and 528,140.40

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Solution

The fourth proportional to 2,125,578, 3,188,355.09 and 528,140.40 is: 792,207.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125,578 : 3,188,355.09 = 528,140.40 : x
  2. Step 2: Convert to fraction form
    2,125,578/3,188,355.09 = 528,140.40/x
  3. Step 3: Cross multiply
    2,125,578x = 3,188,355.09 × 528,140.40
  4. Step 4: Simplify right side
    2,125,578x = 1,683,899,132,574.64
  5. Step 5: Solve for x
    x = 1,683,899,132,574.64/2,125,578
  6. Step 6: Final answer
    x = 792,207.64

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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.