Home / 688,428.48-950,025.60-386,616

Finding the Fourth Proportional to 688,428.48, 950,025.60 and 386,616

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Solution

The fourth proportional to 688,428.48, 950,025.60 and 386,616 is: 533,526.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,428.48 : 950,025.60 = 386,616 : x
  2. Step 2: Convert to fraction form
    688,428.48/950,025.60 = 386,616/x
  3. Step 3: Cross multiply
    688,428.48x = 950,025.60 × 386,616
  4. Step 4: Simplify right side
    688,428.48x = 367,295,097,369.60
  5. Step 5: Solve for x
    x = 367,295,097,369.60/688,428.48
  6. Step 6: Final answer
    x = 533,526.88

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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.