Home / 1,687,216.32-2,530,303.70-489,226.94

Finding the Fourth Proportional to 1,687,216.32, 2,530,303.70 and 489,226.94

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Solution

The fourth proportional to 1,687,216.32, 2,530,303.70 and 489,226.94 is: 733,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,216.32 : 2,530,303.70 = 489,226.94 : x
  2. Step 2: Convert to fraction form
    1,687,216.32/2,530,303.70 = 489,226.94/x
  3. Step 3: Cross multiply
    1,687,216.32x = 2,530,303.70 × 489,226.94
  4. Step 4: Simplify right side
    1,687,216.32x = 1,237,892,736,421.68
  5. Step 5: Solve for x
    x = 1,237,892,736,421.68/1,687,216.32
  6. Step 6: Final answer
    x = 733,689.40

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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.