Home / 808,603.50-1,212,963.60-309,967.50

Finding the Fourth Proportional to 808,603.50, 1,212,963.60 and 309,967.50

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Solution

The fourth proportional to 808,603.50, 1,212,963.60 and 309,967.50 is: 464,973.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,603.50 : 1,212,963.60 = 309,967.50 : x
  2. Step 2: Convert to fraction form
    808,603.50/1,212,963.60 = 309,967.50/x
  3. Step 3: Cross multiply
    808,603.50x = 1,212,963.60 × 309,967.50
  4. Step 4: Simplify right side
    808,603.50x = 375,979,294,683
  5. Step 5: Solve for x
    x = 375,979,294,683/808,603.50
  6. Step 6: Final answer
    x = 464,973.62

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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.