Home / 777,054.90-1,072,319.61-432,890.36

Finding the Fourth Proportional to 777,054.90, 1,072,319.61 and 432,890.36

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Solution

The fourth proportional to 777,054.90, 1,072,319.61 and 432,890.36 is: 597,379.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,054.90 : 1,072,319.61 = 432,890.36 : x
  2. Step 2: Convert to fraction form
    777,054.90/1,072,319.61 = 432,890.36/x
  3. Step 3: Cross multiply
    777,054.90x = 1,072,319.61 × 432,890.36
  4. Step 4: Simplify right side
    777,054.90x = 464,196,816,646.36
  5. Step 5: Solve for x
    x = 464,196,816,646.36/777,054.90
  6. Step 6: Final answer
    x = 597,379.69

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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.