Home / 501,824.90-691,563.74-492,602.60

Finding the Fourth Proportional to 501,824.90, 691,563.74 and 492,602.60

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Solution

The fourth proportional to 501,824.90, 691,563.74 and 492,602.60 is: 678,854.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,824.90 : 691,563.74 = 492,602.60 : x
  2. Step 2: Convert to fraction form
    501,824.90/691,563.74 = 492,602.60/x
  3. Step 3: Cross multiply
    501,824.90x = 691,563.74 × 492,602.60
  4. Step 4: Simplify right side
    501,824.90x = 340,666,096,389.72
  5. Step 5: Solve for x
    x = 340,666,096,389.72/501,824.90
  6. Step 6: Final answer
    x = 678,854.51

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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.