Home / 289,746.10-434,619.15-278,082.10

Finding the Fourth Proportional to 289,746.10, 434,619.15 and 278,082.10

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Solution

The fourth proportional to 289,746.10, 434,619.15 and 278,082.10 is: 417,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,746.10 : 434,619.15 = 278,082.10 : x
  2. Step 2: Convert to fraction form
    289,746.10/434,619.15 = 278,082.10/x
  3. Step 3: Cross multiply
    289,746.10x = 434,619.15 × 278,082.10
  4. Step 4: Simplify right side
    289,746.10x = 120,859,805,932.22
  5. Step 5: Solve for x
    x = 120,859,805,932.22/289,746.10
  6. Step 6: Final answer
    x = 417,123.15

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1.5x scale

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.