Home / 762,688.98-1,144,334.80-289,499.94

Finding the Fourth Proportional to 762,688.98, 1,144,334.80 and 289,499.94

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Solution

The fourth proportional to 762,688.98, 1,144,334.80 and 289,499.94 is: 434,364.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,688.98 : 1,144,334.80 = 289,499.94 : x
  2. Step 2: Convert to fraction form
    762,688.98/1,144,334.80 = 289,499.94/x
  3. Step 3: Cross multiply
    762,688.98x = 1,144,334.80 × 289,499.94
  4. Step 4: Simplify right side
    762,688.98x = 331,284,855,939.91
  5. Step 5: Solve for x
    x = 331,284,855,939.91/762,688.98
  6. Step 6: Final answer
    x = 434,364.29

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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.