Home / 520,231.16-717,916.92-290,788.19

Finding the Fourth Proportional to 520,231.16, 717,916.92 and 290,788.19

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Solution

The fourth proportional to 520,231.16, 717,916.92 and 290,788.19 is: 401,286.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,231.16 : 717,916.92 = 290,788.19 : x
  2. Step 2: Convert to fraction form
    520,231.16/717,916.92 = 290,788.19/x
  3. Step 3: Cross multiply
    520,231.16x = 717,916.92 × 290,788.19
  4. Step 4: Simplify right side
    520,231.16x = 208,761,762,441.51
  5. Step 5: Solve for x
    x = 208,761,762,441.51/520,231.16
  6. Step 6: Final answer
    x = 401,286.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.