Home / 785,420.10-1,178,141.99-299,129.16

Finding the Fourth Proportional to 785,420.10, 1,178,141.99 and 299,129.16

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Solution

The fourth proportional to 785,420.10, 1,178,141.99 and 299,129.16 is: 448,698.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,420.10 : 1,178,141.99 = 299,129.16 : x
  2. Step 2: Convert to fraction form
    785,420.10/1,178,141.99 = 299,129.16/x
  3. Step 3: Cross multiply
    785,420.10x = 1,178,141.99 × 299,129.16
  4. Step 4: Simplify right side
    785,420.10x = 352,416,622,333.78
  5. Step 5: Solve for x
    x = 352,416,622,333.78/785,420.10
  6. Step 6: Final answer
    x = 448,698.25

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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.