Home / 840,429.68-1,159,805.40-477,808.88

Finding the Fourth Proportional to 840,429.68, 1,159,805.40 and 477,808.88

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Solution

The fourth proportional to 840,429.68, 1,159,805.40 and 477,808.88 is: 659,383.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,429.68 : 1,159,805.40 = 477,808.88 : x
  2. Step 2: Convert to fraction form
    840,429.68/1,159,805.40 = 477,808.88/x
  3. Step 3: Cross multiply
    840,429.68x = 1,159,805.40 × 477,808.88
  4. Step 4: Simplify right side
    840,429.68x = 554,165,319,191.95
  5. Step 5: Solve for x
    x = 554,165,319,191.95/840,429.68
  6. Step 6: Final answer
    x = 659,383.33

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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.