Home / 854,428.71-1,281,770.47-314,643.45

Finding the Fourth Proportional to 854,428.71, 1,281,770.47 and 314,643.45

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Solution

The fourth proportional to 854,428.71, 1,281,770.47 and 314,643.45 is: 472,012.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,428.71 : 1,281,770.47 = 314,643.45 : x
  2. Step 2: Convert to fraction form
    854,428.71/1,281,770.47 = 314,643.45/x
  3. Step 3: Cross multiply
    854,428.71x = 1,281,770.47 × 314,643.45
  4. Step 4: Simplify right side
    854,428.71x = 403,300,682,788.92
  5. Step 5: Solve for x
    x = 403,300,682,788.92/854,428.71
  6. Step 6: Final answer
    x = 472,012.09

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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.