Home / 1,272,787.81-1,908,681.33-462,980

Finding the Fourth Proportional to 1,272,787.81, 1,908,681.33 and 462,980

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Solution

The fourth proportional to 1,272,787.81, 1,908,681.33 and 462,980 is: 694,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,787.81 : 1,908,681.33 = 462,980 : x
  2. Step 2: Convert to fraction form
    1,272,787.81/1,908,681.33 = 462,980/x
  3. Step 3: Cross multiply
    1,272,787.81x = 1,908,681.33 × 462,980
  4. Step 4: Simplify right side
    1,272,787.81x = 883,681,282,163.40
  5. Step 5: Solve for x
    x = 883,681,282,163.40/1,272,787.81
  6. Step 6: Final answer
    x = 694,287.98

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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.