Home / 762,698.16-1,144,348.20-289,509.12

Finding the Fourth Proportional to 762,698.16, 1,144,348.20 and 289,509.12

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Solution

The fourth proportional to 762,698.16, 1,144,348.20 and 289,509.12 is: 434,377.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,698.16 : 1,144,348.20 = 289,509.12 : x
  2. Step 2: Convert to fraction form
    762,698.16/1,144,348.20 = 289,509.12/x
  3. Step 3: Cross multiply
    762,698.16x = 1,144,348.20 × 289,509.12
  4. Step 4: Simplify right side
    762,698.16x = 331,299,240,355.58
  5. Step 5: Solve for x
    x = 331,299,240,355.58/762,698.16
  6. Step 6: Final answer
    x = 434,377.92

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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.