Home / 755,775.81-1,042,893.45-465,341.31

Finding the Fourth Proportional to 755,775.81, 1,042,893.45 and 465,341.31

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Solution

The fourth proportional to 755,775.81, 1,042,893.45 and 465,341.31 is: 642,123.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,775.81 : 1,042,893.45 = 465,341.31 : x
  2. Step 2: Convert to fraction form
    755,775.81/1,042,893.45 = 465,341.31/x
  3. Step 3: Cross multiply
    755,775.81x = 1,042,893.45 × 465,341.31
  4. Step 4: Simplify right side
    755,775.81x = 485,301,404,213.42
  5. Step 5: Solve for x
    x = 485,301,404,213.42/755,775.81
  6. Step 6: Final answer
    x = 642,123.49

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1.5x scale

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.