Home / 2,657,428.40-3,986,142.60-974,313.20

Finding the Fourth Proportional to 2,657,428.40, 3,986,142.60 and 974,313.20

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Solution

The fourth proportional to 2,657,428.40, 3,986,142.60 and 974,313.20 is: 1,461,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657,428.40 : 3,986,142.60 = 974,313.20 : x
  2. Step 2: Convert to fraction form
    2,657,428.40/3,986,142.60 = 974,313.20/x
  3. Step 3: Cross multiply
    2,657,428.40x = 3,986,142.60 × 974,313.20
  4. Step 4: Simplify right side
    2,657,428.40x = 3,883,751,352,262.32
  5. Step 5: Solve for x
    x = 3,883,751,352,262.32/2,657,428.40
  6. Step 6: Final answer
    x = 1,461,469.80

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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.