Home / 515,939.80-771,907.37-452,281.09

Finding the Fourth Proportional to 515,939.80, 771,907.37 and 452,281.09

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Solution

The fourth proportional to 515,939.80, 771,907.37 and 452,281.09 is: 676,666.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,939.80 : 771,907.37 = 452,281.09 : x
  2. Step 2: Convert to fraction form
    515,939.80/771,907.37 = 452,281.09/x
  3. Step 3: Cross multiply
    515,939.80x = 771,907.37 × 452,281.09
  4. Step 4: Simplify right side
    515,939.80x = 349,119,106,682.63
  5. Step 5: Solve for x
    x = 349,119,106,682.63/515,939.80
  6. Step 6: Final answer
    x = 676,666.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.