Home / 402,099.09-554,427.95-299,947.22

Finding the Fourth Proportional to 402,099.09, 554,427.95 and 299,947.22

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Solution

The fourth proportional to 402,099.09, 554,427.95 and 299,947.22 is: 413,577.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,099.09 : 554,427.95 = 299,947.22 : x
  2. Step 2: Convert to fraction form
    402,099.09/554,427.95 = 299,947.22/x
  3. Step 3: Cross multiply
    402,099.09x = 554,427.95 × 299,947.22
  4. Step 4: Simplify right side
    402,099.09x = 166,299,119,520.66
  5. Step 5: Solve for x
    x = 166,299,119,520.66/402,099.09
  6. Step 6: Final answer
    x = 413,577.46

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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.