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Finding the Fourth Proportional to 492,412.25, 679,528.71 and 266,057.75

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Solution

The fourth proportional to 492,412.25, 679,528.71 and 266,057.75 is: 367,159.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,412.25 : 679,528.71 = 266,057.75 : x
  2. Step 2: Convert to fraction form
    492,412.25/679,528.71 = 266,057.75/x
  3. Step 3: Cross multiply
    492,412.25x = 679,528.71 × 266,057.75
  4. Step 4: Simplify right side
    492,412.25x = 180,793,879,643.00
  5. Step 5: Solve for x
    x = 180,793,879,643.00/492,412.25
  6. Step 6: Final answer
    x = 367,159.59

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1.5x scale

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.