Home / 289,579.74-434,430.09-89,894.94

Finding the Fourth Proportional to 289,579.74, 434,430.09 and 89,894.94

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Solution

The fourth proportional to 289,579.74, 434,430.09 and 89,894.94 is: 134,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,579.74 : 434,430.09 = 89,894.94 : x
  2. Step 2: Convert to fraction form
    289,579.74/434,430.09 = 89,894.94/x
  3. Step 3: Cross multiply
    289,579.74x = 434,430.09 × 89,894.94
  4. Step 4: Simplify right side
    289,579.74x = 39,053,066,874.74
  5. Step 5: Solve for x
    x = 39,053,066,874.74/289,579.74
  6. Step 6: Final answer
    x = 134,861.18

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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.