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Finding the Fourth Proportional to 654,572.21, 903,315.24 and 368,089.79

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Solution

The fourth proportional to 654,572.21, 903,315.24 and 368,089.79 is: 507,967.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,572.21 : 903,315.24 = 368,089.79 : x
  2. Step 2: Convert to fraction form
    654,572.21/903,315.24 = 368,089.79/x
  3. Step 3: Cross multiply
    654,572.21x = 903,315.24 × 368,089.79
  4. Step 4: Simplify right side
    654,572.21x = 332,501,112,478.82
  5. Step 5: Solve for x
    x = 332,501,112,478.82/654,572.21
  6. Step 6: Final answer
    x = 507,967.05

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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.