Home / 851,289.32-1,174,822.71-469,315.19

Finding the Fourth Proportional to 851,289.32, 1,174,822.71 and 469,315.19

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Solution

The fourth proportional to 851,289.32, 1,174,822.71 and 469,315.19 is: 647,678.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,289.32 : 1,174,822.71 = 469,315.19 : x
  2. Step 2: Convert to fraction form
    851,289.32/1,174,822.71 = 469,315.19/x
  3. Step 3: Cross multiply
    851,289.32x = 1,174,822.71 × 469,315.19
  4. Step 4: Simplify right side
    851,289.32x = 551,362,143,359.97
  5. Step 5: Solve for x
    x = 551,362,143,359.97/851,289.32
  6. Step 6: Final answer
    x = 647,678.92

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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.