Home / 817,799.51-1,226,950.27-418,720.48

Finding the Fourth Proportional to 817,799.51, 1,226,950.27 and 418,720.48

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Solution

The fourth proportional to 817,799.51, 1,226,950.27 and 418,720.48 is: 628,209.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,799.51 : 1,226,950.27 = 418,720.48 : x
  2. Step 2: Convert to fraction form
    817,799.51/1,226,950.27 = 418,720.48/x
  3. Step 3: Cross multiply
    817,799.51x = 1,226,950.27 × 418,720.48
  4. Step 4: Simplify right side
    817,799.51x = 513,749,201,876.35
  5. Step 5: Solve for x
    x = 513,749,201,876.35/817,799.51
  6. Step 6: Final answer
    x = 628,209.23

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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.