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Finding the Fourth Proportional to 578,334.47, 798,101.47 and 323,685.66

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Solution

The fourth proportional to 578,334.47, 798,101.47 and 323,685.66 is: 446,686.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,334.47 : 798,101.47 = 323,685.66 : x
  2. Step 2: Convert to fraction form
    578,334.47/798,101.47 = 323,685.66/x
  3. Step 3: Cross multiply
    578,334.47x = 798,101.47 × 323,685.66
  4. Step 4: Simplify right side
    578,334.47x = 258,334,001,063.92
  5. Step 5: Solve for x
    x = 258,334,001,063.92/578,334.47
  6. Step 6: Final answer
    x = 446,686.16

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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.