Home / 917,137.40-1,375,706.10-581,214.20

Finding the Fourth Proportional to 917,137.40, 1,375,706.10 and 581,214.20

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Solution

The fourth proportional to 917,137.40, 1,375,706.10 and 581,214.20 is: 871,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,137.40 : 1,375,706.10 = 581,214.20 : x
  2. Step 2: Convert to fraction form
    917,137.40/1,375,706.10 = 581,214.20/x
  3. Step 3: Cross multiply
    917,137.40x = 1,375,706.10 × 581,214.20
  4. Step 4: Simplify right side
    917,137.40x = 799,579,920,346.62
  5. Step 5: Solve for x
    x = 799,579,920,346.62/917,137.40
  6. Step 6: Final answer
    x = 871,821.30

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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.