Home / 1,161,229.80-1,742,415.35-521,985.20

Finding the Fourth Proportional to 1,161,229.80, 1,742,415.35 and 521,985.20

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Solution

The fourth proportional to 1,161,229.80, 1,742,415.35 and 521,985.20 is: 783,234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,229.80 : 1,742,415.35 = 521,985.20 : x
  2. Step 2: Convert to fraction form
    1,161,229.80/1,742,415.35 = 521,985.20/x
  3. Step 3: Cross multiply
    1,161,229.80x = 1,742,415.35 × 521,985.20
  4. Step 4: Simplify right side
    1,161,229.80x = 909,515,013,630.82
  5. Step 5: Solve for x
    x = 909,515,013,630.82/1,161,229.80
  6. Step 6: Final answer
    x = 783,234.30

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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.