Home / 854,780.20-1,179,226.02-515,055.40

Finding the Fourth Proportional to 854,780.20, 1,179,226.02 and 515,055.40

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Solution

The fourth proportional to 854,780.20, 1,179,226.02 and 515,055.40 is: 710,553.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,780.20 : 1,179,226.02 = 515,055.40 : x
  2. Step 2: Convert to fraction form
    854,780.20/1,179,226.02 = 515,055.40/x
  3. Step 3: Cross multiply
    854,780.20x = 1,179,226.02 × 515,055.40
  4. Step 4: Simplify right side
    854,780.20x = 607,366,729,421.51
  5. Step 5: Solve for x
    x = 607,366,729,421.51/854,780.20
  6. Step 6: Final answer
    x = 710,553.11

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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.