Home / 500,281.16-690,387.15-270,838.36

Finding the Fourth Proportional to 500,281.16, 690,387.15 and 270,838.36

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Solution

The fourth proportional to 500,281.16, 690,387.15 and 270,838.36 is: 373,756.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,281.16 : 690,387.15 = 270,838.36 : x
  2. Step 2: Convert to fraction form
    500,281.16/690,387.15 = 270,838.36/x
  3. Step 3: Cross multiply
    500,281.16x = 690,387.15 × 270,838.36
  4. Step 4: Simplify right side
    500,281.16x = 186,983,321,884.52
  5. Step 5: Solve for x
    x = 186,983,321,884.52/500,281.16
  6. Step 6: Final answer
    x = 373,756.47

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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.