Home / 734,592.90-1,013,688.78-407,889.12

Finding the Fourth Proportional to 734,592.90, 1,013,688.78 and 407,889.12

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Solution

The fourth proportional to 734,592.90, 1,013,688.78 and 407,889.12 is: 562,859.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,592.90 : 1,013,688.78 = 407,889.12 : x
  2. Step 2: Convert to fraction form
    734,592.90/1,013,688.78 = 407,889.12/x
  3. Step 3: Cross multiply
    734,592.90x = 1,013,688.78 × 407,889.12
  4. Step 4: Simplify right side
    734,592.90x = 413,472,624,428.07
  5. Step 5: Solve for x
    x = 413,472,624,428.07/734,592.90
  6. Step 6: Final answer
    x = 562,859.54

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Double scale
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Similar ratio
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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.