Home / 674,128.71-1,011,195.83-168,688.31

Finding the Fourth Proportional to 674,128.71, 1,011,195.83 and 168,688.31

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Solution

The fourth proportional to 674,128.71, 1,011,195.83 and 168,688.31 is: 253,033.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,128.71 : 1,011,195.83 = 168,688.31 : x
  2. Step 2: Convert to fraction form
    674,128.71/1,011,195.83 = 168,688.31/x
  3. Step 3: Cross multiply
    674,128.71x = 1,011,195.83 × 168,688.31
  4. Step 4: Simplify right side
    674,128.71x = 170,576,911,007.49
  5. Step 5: Solve for x
    x = 170,576,911,007.49/674,128.71
  6. Step 6: Final answer
    x = 253,033.15

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.