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Finding the Fourth Proportional to 490,360.59, 676,726.53 and 369,288.27

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Solution

The fourth proportional to 490,360.59, 676,726.53 and 369,288.27 is: 509,639.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,360.59 : 676,726.53 = 369,288.27 : x
  2. Step 2: Convert to fraction form
    490,360.59/676,726.53 = 369,288.27/x
  3. Step 3: Cross multiply
    490,360.59x = 676,726.53 × 369,288.27
  4. Step 4: Simplify right side
    490,360.59x = 249,907,169,526.80
  5. Step 5: Solve for x
    x = 249,907,169,526.80/490,360.59
  6. Step 6: Final answer
    x = 509,639.59

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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.