Home / 1,605,515.60-2,215,710.92-890,123.60

Finding the Fourth Proportional to 1,605,515.60, 2,215,710.92 and 890,123.60

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Solution

The fourth proportional to 1,605,515.60, 2,215,710.92 and 890,123.60 is: 1,228,425.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,515.60 : 2,215,710.92 = 890,123.60 : x
  2. Step 2: Convert to fraction form
    1,605,515.60/2,215,710.92 = 890,123.60/x
  3. Step 3: Cross multiply
    1,605,515.60x = 2,215,710.92 × 890,123.60
  4. Step 4: Simplify right side
    1,605,515.60x = 1,972,256,580,669.71
  5. Step 5: Solve for x
    x = 1,972,256,580,669.71/1,605,515.60
  6. Step 6: Final answer
    x = 1,228,425.67

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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.