Home / 841,825.31-1,263,235.77-309,719.70

Finding the Fourth Proportional to 841,825.31, 1,263,235.77 and 309,719.70

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Solution

The fourth proportional to 841,825.31, 1,263,235.77 and 309,719.70 is: 464,762.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,825.31 : 1,263,235.77 = 309,719.70 : x
  2. Step 2: Convert to fraction form
    841,825.31/1,263,235.77 = 309,719.70/x
  3. Step 3: Cross multiply
    841,825.31x = 1,263,235.77 × 309,719.70
  4. Step 4: Simplify right side
    841,825.31x = 391,249,003,713.67
  5. Step 5: Solve for x
    x = 391,249,003,713.67/841,825.31
  6. Step 6: Final answer
    x = 464,762.70

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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.