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Finding the Fourth Proportional to 578,860.32, 798,558.22 and 374,979.98

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Solution

The fourth proportional to 578,860.32, 798,558.22 and 374,979.98 is: 517,298.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,860.32 : 798,558.22 = 374,979.98 : x
  2. Step 2: Convert to fraction form
    578,860.32/798,558.22 = 374,979.98/x
  3. Step 3: Cross multiply
    578,860.32x = 798,558.22 × 374,979.98
  4. Step 4: Simplify right side
    578,860.32x = 299,443,346,774.93
  5. Step 5: Solve for x
    x = 299,443,346,774.93/578,860.32
  6. Step 6: Final answer
    x = 517,298.10

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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.