Home / 704,758.32-1,056,819.96-420,580.08

Finding the Fourth Proportional to 704,758.32, 1,056,819.96 and 420,580.08

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Solution

The fourth proportional to 704,758.32, 1,056,819.96 and 420,580.08 is: 630,680.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,758.32 : 1,056,819.96 = 420,580.08 : x
  2. Step 2: Convert to fraction form
    704,758.32/1,056,819.96 = 420,580.08/x
  3. Step 3: Cross multiply
    704,758.32x = 1,056,819.96 × 420,580.08
  4. Step 4: Simplify right side
    704,758.32x = 444,477,423,322.40
  5. Step 5: Solve for x
    x = 444,477,423,322.40/704,758.32
  6. Step 6: Final answer
    x = 630,680.63

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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.