Home / 841,881.87-1,263,321.02-309,776.56

Finding the Fourth Proportional to 841,881.87, 1,263,321.02 and 309,776.56

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Solution

The fourth proportional to 841,881.87, 1,263,321.02 and 309,776.56 is: 464,848.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,881.87 : 1,263,321.02 = 309,776.56 : x
  2. Step 2: Convert to fraction form
    841,881.87/1,263,321.02 = 309,776.56/x
  3. Step 3: Cross multiply
    841,881.87x = 1,263,321.02 × 309,776.56
  4. Step 4: Simplify right side
    841,881.87x = 391,347,239,751.29
  5. Step 5: Solve for x
    x = 391,347,239,751.29/841,881.87
  6. Step 6: Final answer
    x = 464,848.16

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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.