Home / 289,544.92-434,374.78-89,856.78

Finding the Fourth Proportional to 289,544.92, 434,374.78 and 89,856.78

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Solution

The fourth proportional to 289,544.92, 434,374.78 and 89,856.78 is: 134,802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,544.92 : 434,374.78 = 89,856.78 : x
  2. Step 2: Convert to fraction form
    289,544.92/434,374.78 = 89,856.78/x
  3. Step 3: Cross multiply
    289,544.92x = 434,374.78 × 89,856.78
  4. Step 4: Simplify right side
    289,544.92x = 39,031,519,044.01
  5. Step 5: Solve for x
    x = 39,031,519,044.01/289,544.92
  6. Step 6: Final answer
    x = 134,802.98

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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.