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Finding the Fourth Proportional to 625,749.89, 863,541.50 and 367,637.58

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Solution

The fourth proportional to 625,749.89, 863,541.50 and 367,637.58 is: 507,343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,749.89 : 863,541.50 = 367,637.58 : x
  2. Step 2: Convert to fraction form
    625,749.89/863,541.50 = 367,637.58/x
  3. Step 3: Cross multiply
    625,749.89x = 863,541.50 × 367,637.58
  4. Step 4: Simplify right side
    625,749.89x = 317,470,305,451.38
  5. Step 5: Solve for x
    x = 317,470,305,451.38/625,749.89
  6. Step 6: Final answer
    x = 507,343.77

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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.