Home / 515,415.79-772,938.45-178,364.94

Finding the Fourth Proportional to 515,415.79, 772,938.45 and 178,364.94

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Solution

The fourth proportional to 515,415.79, 772,938.45 and 178,364.94 is: 267,483.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,415.79 : 772,938.45 = 178,364.94 : x
  2. Step 2: Convert to fraction form
    515,415.79/772,938.45 = 178,364.94/x
  3. Step 3: Cross multiply
    515,415.79x = 772,938.45 × 178,364.94
  4. Step 4: Simplify right side
    515,415.79x = 137,865,116,393.25
  5. Step 5: Solve for x
    x = 137,865,116,393.25/515,415.79
  6. Step 6: Final answer
    x = 267,483.30

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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.