Home / 1,087,297.80-1,630,819.92-288,641.40

Finding the Fourth Proportional to 1,087,297.80, 1,630,819.92 and 288,641.40

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Solution

The fourth proportional to 1,087,297.80, 1,630,819.92 and 288,641.40 is: 432,928.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,297.80 : 1,630,819.92 = 288,641.40 : x
  2. Step 2: Convert to fraction form
    1,087,297.80/1,630,819.92 = 288,641.40/x
  3. Step 3: Cross multiply
    1,087,297.80x = 1,630,819.92 × 288,641.40
  4. Step 4: Simplify right side
    1,087,297.80x = 470,722,144,856.69
  5. Step 5: Solve for x
    x = 470,722,144,856.69/1,087,297.80
  6. Step 6: Final answer
    x = 432,928.44

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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.