Home / 1,006,706.50-1,389,255.19-553,997.50

Finding the Fourth Proportional to 1,006,706.50, 1,389,255.19 and 553,997.50

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Solution

The fourth proportional to 1,006,706.50, 1,389,255.19 and 553,997.50 is: 764,516.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,706.50 : 1,389,255.19 = 553,997.50 : x
  2. Step 2: Convert to fraction form
    1,006,706.50/1,389,255.19 = 553,997.50/x
  3. Step 3: Cross multiply
    1,006,706.50x = 1,389,255.19 × 553,997.50
  4. Step 4: Simplify right side
    1,006,706.50x = 769,643,895,175.75
  5. Step 5: Solve for x
    x = 769,643,895,175.75/1,006,706.50
  6. Step 6: Final answer
    x = 764,516.67

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.