Home / 813,541.63-1,220,324.76-307,966.87

Finding the Fourth Proportional to 813,541.63, 1,220,324.76 and 307,966.87

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Solution

The fourth proportional to 813,541.63, 1,220,324.76 and 307,966.87 is: 461,954.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,541.63 : 1,220,324.76 = 307,966.87 : x
  2. Step 2: Convert to fraction form
    813,541.63/1,220,324.76 = 307,966.87/x
  3. Step 3: Cross multiply
    813,541.63x = 1,220,324.76 × 307,966.87
  4. Step 4: Simplify right side
    813,541.63x = 375,819,595,680.10
  5. Step 5: Solve for x
    x = 375,819,595,680.10/813,541.63
  6. Step 6: Final answer
    x = 461,954.96

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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.