Home / 821,804.35-1,134,068.30-459,231.21

Finding the Fourth Proportional to 821,804.35, 1,134,068.30 and 459,231.21

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Solution

The fourth proportional to 821,804.35, 1,134,068.30 and 459,231.21 is: 633,726.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,804.35 : 1,134,068.30 = 459,231.21 : x
  2. Step 2: Convert to fraction form
    821,804.35/1,134,068.30 = 459,231.21/x
  3. Step 3: Cross multiply
    821,804.35x = 1,134,068.30 × 459,231.21
  4. Step 4: Simplify right side
    821,804.35x = 520,799,549,665.15
  5. Step 5: Solve for x
    x = 520,799,549,665.15/821,804.35
  6. Step 6: Final answer
    x = 633,726.93

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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.