Home / 674,921.76-931,411.46-373,135.20

Finding the Fourth Proportional to 674,921.76, 931,411.46 and 373,135.20

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Solution

The fourth proportional to 674,921.76, 931,411.46 and 373,135.20 is: 514,937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,921.76 : 931,411.46 = 373,135.20 : x
  2. Step 2: Convert to fraction form
    674,921.76/931,411.46 = 373,135.20/x
  3. Step 3: Cross multiply
    674,921.76x = 931,411.46 × 373,135.20
  4. Step 4: Simplify right side
    674,921.76x = 347,542,401,409.39
  5. Step 5: Solve for x
    x = 347,542,401,409.39/674,921.76
  6. Step 6: Final answer
    x = 514,937.32

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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.