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Finding the Fourth Proportional to 624,420.90, 935,647.20 and 524,037.60

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Solution

The fourth proportional to 624,420.90, 935,647.20 and 524,037.60 is: 785,230.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,420.90 : 935,647.20 = 524,037.60 : x
  2. Step 2: Convert to fraction form
    624,420.90/935,647.20 = 524,037.60/x
  3. Step 3: Cross multiply
    624,420.90x = 935,647.20 × 524,037.60
  4. Step 4: Simplify right side
    624,420.90x = 490,314,313,134.72
  5. Step 5: Solve for x
    x = 490,314,313,134.72/624,420.90
  6. Step 6: Final answer
    x = 785,230.46

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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.