Home / 1,283,999.75-1,925,995.17-385,437.86

Finding the Fourth Proportional to 1,283,999.75, 1,925,995.17 and 385,437.86

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Solution

The fourth proportional to 1,283,999.75, 1,925,995.17 and 385,437.86 is: 578,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,999.75 : 1,925,995.17 = 385,437.86 : x
  2. Step 2: Convert to fraction form
    1,283,999.75/1,925,995.17 = 385,437.86/x
  3. Step 3: Cross multiply
    1,283,999.75x = 1,925,995.17 × 385,437.86
  4. Step 4: Simplify right side
    1,283,999.75x = 742,351,456,695.14
  5. Step 5: Solve for x
    x = 742,351,456,695.14/1,283,999.75
  6. Step 6: Final answer
    x = 578,155.45

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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.