Home / 1,478,412.90-2,217,619.35-1,328,822.10

Finding the Fourth Proportional to 1,478,412.90, 2,217,619.35 and 1,328,822.10

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Solution

The fourth proportional to 1,478,412.90, 2,217,619.35 and 1,328,822.10 is: 1,993,233.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,412.90 : 2,217,619.35 = 1,328,822.10 : x
  2. Step 2: Convert to fraction form
    1,478,412.90/2,217,619.35 = 1,328,822.10/x
  3. Step 3: Cross multiply
    1,478,412.90x = 2,217,619.35 × 1,328,822.10
  4. Step 4: Simplify right side
    1,478,412.90x = 2,946,821,601,667.64
  5. Step 5: Solve for x
    x = 2,946,821,601,667.64/1,478,412.90
  6. Step 6: Final answer
    x = 1,993,233.15

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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.