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Finding the Fourth Proportional to 540,371.16, 745,804.80 and 314,147.88

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Solution

The fourth proportional to 540,371.16, 745,804.80 and 314,147.88 is: 433,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,371.16 : 745,804.80 = 314,147.88 : x
  2. Step 2: Convert to fraction form
    540,371.16/745,804.80 = 314,147.88/x
  3. Step 3: Cross multiply
    540,371.16x = 745,804.80 × 314,147.88
  4. Step 4: Simplify right side
    540,371.16x = 234,292,996,813.82
  5. Step 5: Solve for x
    x = 234,292,996,813.82/540,371.16
  6. Step 6: Final answer
    x = 433,577.91

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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.