Home / 495,939.40-743,937.90-140,979.40

Finding the Fourth Proportional to 495,939.40, 743,937.90 and 140,979.40

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Solution

The fourth proportional to 495,939.40, 743,937.90 and 140,979.40 is: 211,477.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,939.40 : 743,937.90 = 140,979.40 : x
  2. Step 2: Convert to fraction form
    495,939.40/743,937.90 = 140,979.40/x
  3. Step 3: Cross multiply
    495,939.40x = 743,937.90 × 140,979.40
  4. Step 4: Simplify right side
    495,939.40x = 104,879,918,779.26
  5. Step 5: Solve for x
    x = 104,879,918,779.26/495,939.40
  6. Step 6: Final answer
    x = 211,477.29

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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.