Home / 726,748.90-1,090,123.35-446,812.90

Finding the Fourth Proportional to 726,748.90, 1,090,123.35 and 446,812.90

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Solution

The fourth proportional to 726,748.90, 1,090,123.35 and 446,812.90 is: 670,219.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,748.90 : 1,090,123.35 = 446,812.90 : x
  2. Step 2: Convert to fraction form
    726,748.90/1,090,123.35 = 446,812.90/x
  3. Step 3: Cross multiply
    726,748.90x = 1,090,123.35 × 446,812.90
  4. Step 4: Simplify right side
    726,748.90x = 487,081,175,371.22
  5. Step 5: Solve for x
    x = 487,081,175,371.22/726,748.90
  6. Step 6: Final answer
    x = 670,219.35

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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.