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Finding the Fourth Proportional to 438,078.47, 604,821.96 and 335,907.66

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Solution

The fourth proportional to 438,078.47, 604,821.96 and 335,907.66 is: 463,762.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,078.47 : 604,821.96 = 335,907.66 : x
  2. Step 2: Convert to fraction form
    438,078.47/604,821.96 = 335,907.66/x
  3. Step 3: Cross multiply
    438,078.47x = 604,821.96 × 335,907.66
  4. Step 4: Simplify right side
    438,078.47x = 203,164,329,300.21
  5. Step 5: Solve for x
    x = 203,164,329,300.21/438,078.47
  6. Step 6: Final answer
    x = 463,762.42

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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.