Home / 813,088.29-1,220,749.62-413,997.24

Finding the Fourth Proportional to 813,088.29, 1,220,749.62 and 413,997.24

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Solution

The fourth proportional to 813,088.29, 1,220,749.62 and 413,997.24 is: 621,564.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,088.29 : 1,220,749.62 = 413,997.24 : x
  2. Step 2: Convert to fraction form
    813,088.29/1,220,749.62 = 413,997.24/x
  3. Step 3: Cross multiply
    813,088.29x = 1,220,749.62 × 413,997.24
  4. Step 4: Simplify right side
    813,088.29x = 505,386,973,411.05
  5. Step 5: Solve for x
    x = 505,386,973,411.05/813,088.29
  6. Step 6: Final answer
    x = 621,564.69

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1.5x scale

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.