Home / 911,849.79-1,367,802.37-312,802.30

Finding the Fourth Proportional to 911,849.79, 1,367,802.37 and 312,802.30

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Solution

The fourth proportional to 911,849.79, 1,367,802.37 and 312,802.30 is: 469,212.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,849.79 : 1,367,802.37 = 312,802.30 : x
  2. Step 2: Convert to fraction form
    911,849.79/1,367,802.37 = 312,802.30/x
  3. Step 3: Cross multiply
    911,849.79x = 1,367,802.37 × 312,802.30
  4. Step 4: Simplify right side
    911,849.79x = 427,851,723,079.94
  5. Step 5: Solve for x
    x = 427,851,723,079.94/911,849.79
  6. Step 6: Final answer
    x = 469,212.94

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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.