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Finding the Fourth Proportional to 495,689, 743,532.04 and 140,703.32

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Solution

The fourth proportional to 495,689, 743,532.04 and 140,703.32 is: 211,054.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,689 : 743,532.04 = 140,703.32 : x
  2. Step 2: Convert to fraction form
    495,689/743,532.04 = 140,703.32/x
  3. Step 3: Cross multiply
    495,689x = 743,532.04 × 140,703.32
  4. Step 4: Simplify right side
    495,689x = 104,617,426,554.37
  5. Step 5: Solve for x
    x = 104,617,426,554.37/495,689
  6. Step 6: Final answer
    x = 211,054.57

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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.