Home / 1,572,142.60-2,356,172.70-728,900.20

Finding the Fourth Proportional to 1,572,142.60, 2,356,172.70 and 728,900.20

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Solution

The fourth proportional to 1,572,142.60, 2,356,172.70 and 728,900.20 is: 1,092,403.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572,142.60 : 2,356,172.70 = 728,900.20 : x
  2. Step 2: Convert to fraction form
    1,572,142.60/2,356,172.70 = 728,900.20/x
  3. Step 3: Cross multiply
    1,572,142.60x = 2,356,172.70 × 728,900.20
  4. Step 4: Simplify right side
    1,572,142.60x = 1,717,414,752,264.54
  5. Step 5: Solve for x
    x = 1,717,414,752,264.54/1,572,142.60
  6. Step 6: Final answer
    x = 1,092,403.93

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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.