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Finding the Fourth Proportional to 578,016.77, 797,646.71 and 319,904.53

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Solution

The fourth proportional to 578,016.77, 797,646.71 and 319,904.53 is: 441,459.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,016.77 : 797,646.71 = 319,904.53 : x
  2. Step 2: Convert to fraction form
    578,016.77/797,646.71 = 319,904.53/x
  3. Step 3: Cross multiply
    578,016.77x = 797,646.71 × 319,904.53
  4. Step 4: Simplify right side
    578,016.77x = 255,170,794,674.24
  5. Step 5: Solve for x
    x = 255,170,794,674.24/578,016.77
  6. Step 6: Final answer
    x = 441,459.16

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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.