Home / 409,001.13-613,626.74-209,462.69

Finding the Fourth Proportional to 409,001.13, 613,626.74 and 209,462.69

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Solution

The fourth proportional to 409,001.13, 613,626.74 and 209,462.69 is: 314,258.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,001.13 : 613,626.74 = 209,462.69 : x
  2. Step 2: Convert to fraction form
    409,001.13/613,626.74 = 209,462.69/x
  3. Step 3: Cross multiply
    409,001.13x = 613,626.74 × 209,462.69
  4. Step 4: Simplify right side
    409,001.13x = 128,531,908,888.57
  5. Step 5: Solve for x
    x = 128,531,908,888.57/409,001.13
  6. Step 6: Final answer
    x = 314,258.08

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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.