Home / 559,787.14-772,506.28-305,138.33

Finding the Fourth Proportional to 559,787.14, 772,506.28 and 305,138.33

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Solution

The fourth proportional to 559,787.14, 772,506.28 and 305,138.33 is: 421,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,787.14 : 772,506.28 = 305,138.33 : x
  2. Step 2: Convert to fraction form
    559,787.14/772,506.28 = 305,138.33/x
  3. Step 3: Cross multiply
    559,787.14x = 772,506.28 × 305,138.33
  4. Step 4: Simplify right side
    559,787.14x = 235,721,276,193.71
  5. Step 5: Solve for x
    x = 235,721,276,193.71/559,787.14
  6. Step 6: Final answer
    x = 421,090.91

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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.