Home / 1,605,576.60-2,404,865.70-1,428,283.80

Finding the Fourth Proportional to 1,605,576.60, 2,404,865.70 and 1,428,283.80

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Solution

The fourth proportional to 1,605,576.60, 2,404,865.70 and 1,428,283.80 is: 2,139,312.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,576.60 : 2,404,865.70 = 1,428,283.80 : x
  2. Step 2: Convert to fraction form
    1,605,576.60/2,404,865.70 = 1,428,283.80/x
  3. Step 3: Cross multiply
    1,605,576.60x = 2,404,865.70 × 1,428,283.80
  4. Step 4: Simplify right side
    1,605,576.60x = 3,434,830,720,485.66
  5. Step 5: Solve for x
    x = 3,434,830,720,485.66/1,605,576.60
  6. Step 6: Final answer
    x = 2,139,312.89

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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.