Home / 1,420,443.80-2,130,665.70-889,602.20

Finding the Fourth Proportional to 1,420,443.80, 2,130,665.70 and 889,602.20

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Solution

The fourth proportional to 1,420,443.80, 2,130,665.70 and 889,602.20 is: 1,334,403.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,443.80 : 2,130,665.70 = 889,602.20 : x
  2. Step 2: Convert to fraction form
    1,420,443.80/2,130,665.70 = 889,602.20/x
  3. Step 3: Cross multiply
    1,420,443.80x = 2,130,665.70 × 889,602.20
  4. Step 4: Simplify right side
    1,420,443.80x = 1,895,444,894,184.54
  5. Step 5: Solve for x
    x = 1,895,444,894,184.54/1,420,443.80
  6. Step 6: Final answer
    x = 1,334,403.30

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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.