Home / 1,420,003.70-2,129,487.15-473,405.30

Finding the Fourth Proportional to 1,420,003.70, 2,129,487.15 and 473,405.30

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Solution

The fourth proportional to 1,420,003.70, 2,129,487.15 and 473,405.30 is: 709,935.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,003.70 : 2,129,487.15 = 473,405.30 : x
  2. Step 2: Convert to fraction form
    1,420,003.70/2,129,487.15 = 473,405.30/x
  3. Step 3: Cross multiply
    1,420,003.70x = 2,129,487.15 × 473,405.30
  4. Step 4: Simplify right side
    1,420,003.70x = 1,008,110,503,091.89
  5. Step 5: Solve for x
    x = 1,008,110,503,091.89/1,420,003.70
  6. Step 6: Final answer
    x = 709,935.12

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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.