Home / 841,720.28-1,263,083.47-309,295.13

Finding the Fourth Proportional to 841,720.28, 1,263,083.47 and 309,295.13

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Solution

The fourth proportional to 841,720.28, 1,263,083.47 and 309,295.13 is: 464,127.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,720.28 : 1,263,083.47 = 309,295.13 : x
  2. Step 2: Convert to fraction form
    841,720.28/1,263,083.47 = 309,295.13/x
  3. Step 3: Cross multiply
    841,720.28x = 1,263,083.47 × 309,295.13
  4. Step 4: Simplify right side
    841,720.28x = 390,665,558,965.85
  5. Step 5: Solve for x
    x = 390,665,558,965.85/841,720.28
  6. Step 6: Final answer
    x = 464,127.54

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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.