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Finding the Fourth Proportional to 654,530.47, 903,257.43 and 368,048.05

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Solution

The fourth proportional to 654,530.47, 903,257.43 and 368,048.05 is: 507,909.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,530.47 : 903,257.43 = 368,048.05 : x
  2. Step 2: Convert to fraction form
    654,530.47/903,257.43 = 368,048.05/x
  3. Step 3: Cross multiply
    654,530.47x = 903,257.43 × 368,048.05
  4. Step 4: Simplify right side
    654,530.47x = 332,442,135,759.51
  5. Step 5: Solve for x
    x = 332,442,135,759.51/654,530.47
  6. Step 6: Final answer
    x = 507,909.34

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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.