Home / 1,570,024.70-2,166,510.57-890,961.20

Finding the Fourth Proportional to 1,570,024.70, 2,166,510.57 and 890,961.20

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Solution

The fourth proportional to 1,570,024.70, 2,166,510.57 and 890,961.20 is: 1,229,456.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,024.70 : 2,166,510.57 = 890,961.20 : x
  2. Step 2: Convert to fraction form
    1,570,024.70/2,166,510.57 = 890,961.20/x
  3. Step 3: Cross multiply
    1,570,024.70x = 2,166,510.57 × 890,961.20
  4. Step 4: Simplify right side
    1,570,024.70x = 1,930,276,857,259.88
  5. Step 5: Solve for x
    x = 1,930,276,857,259.88/1,570,024.70
  6. Step 6: Final answer
    x = 1,229,456.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.