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Finding the Fourth Proportional to 558,391.88, 837,681.24 and 438,444

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Solution

The fourth proportional to 558,391.88, 837,681.24 and 438,444 is: 657,739.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,391.88 : 837,681.24 = 438,444 : x
  2. Step 2: Convert to fraction form
    558,391.88/837,681.24 = 438,444/x
  3. Step 3: Cross multiply
    558,391.88x = 837,681.24 × 438,444
  4. Step 4: Simplify right side
    558,391.88x = 367,276,313,590.56
  5. Step 5: Solve for x
    x = 367,276,313,590.56/558,391.88
  6. Step 6: Final answer
    x = 657,739.35

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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.