Home / 821,406.51-1,133,467.11-458,780.04

Finding the Fourth Proportional to 821,406.51, 1,133,467.11 and 458,780.04

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Solution

The fourth proportional to 821,406.51, 1,133,467.11 and 458,780.04 is: 633,075.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,406.51 : 1,133,467.11 = 458,780.04 : x
  2. Step 2: Convert to fraction form
    821,406.51/1,133,467.11 = 458,780.04/x
  3. Step 3: Cross multiply
    821,406.51x = 1,133,467.11 × 458,780.04
  4. Step 4: Simplify right side
    821,406.51x = 520,012,086,064.48
  5. Step 5: Solve for x
    x = 520,012,086,064.48/821,406.51
  6. Step 6: Final answer
    x = 633,075.19

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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.