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Finding the Fourth Proportional to 490,272.84, 676,605.42 and 369,200.52

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Solution

The fourth proportional to 490,272.84, 676,605.42 and 369,200.52 is: 509,518.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,272.84 : 676,605.42 = 369,200.52 : x
  2. Step 2: Convert to fraction form
    490,272.84/676,605.42 = 369,200.52/x
  3. Step 3: Cross multiply
    490,272.84x = 676,605.42 × 369,200.52
  4. Step 4: Simplify right side
    490,272.84x = 249,803,072,898.82
  5. Step 5: Solve for x
    x = 249,803,072,898.82/490,272.84
  6. Step 6: Final answer
    x = 509,518.48

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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.