Home / 1,420,504.80-2,130,757.20-578,623.20

Finding the Fourth Proportional to 1,420,504.80, 2,130,757.20 and 578,623.20

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Solution

The fourth proportional to 1,420,504.80, 2,130,757.20 and 578,623.20 is: 867,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,504.80 : 2,130,757.20 = 578,623.20 : x
  2. Step 2: Convert to fraction form
    1,420,504.80/2,130,757.20 = 578,623.20/x
  3. Step 3: Cross multiply
    1,420,504.80x = 2,130,757.20 × 578,623.20
  4. Step 4: Simplify right side
    1,420,504.80x = 1,232,905,549,487.04
  5. Step 5: Solve for x
    x = 1,232,905,549,487.04/1,420,504.80
  6. Step 6: Final answer
    x = 867,934.80

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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.