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Finding the Fourth Proportional to 490,296.09, 676,637.51 and 369,223.77

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Solution

The fourth proportional to 490,296.09, 676,637.51 and 369,223.77 is: 509,550.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,296.09 : 676,637.51 = 369,223.77 : x
  2. Step 2: Convert to fraction form
    490,296.09/676,637.51 = 369,223.77/x
  3. Step 3: Cross multiply
    490,296.09x = 676,637.51 × 369,223.77
  4. Step 4: Simplify right side
    490,296.09x = 249,830,650,519.49
  5. Step 5: Solve for x
    x = 249,830,650,519.49/490,296.09
  6. Step 6: Final answer
    x = 509,550.57

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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.