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Finding the Fourth Proportional to 660,340.49, 911,292.39 and 369,964.29

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Solution

The fourth proportional to 660,340.49, 911,292.39 and 369,964.29 is: 510,563.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,340.49 : 911,292.39 = 369,964.29 : x
  2. Step 2: Convert to fraction form
    660,340.49/911,292.39 = 369,964.29/x
  3. Step 3: Cross multiply
    660,340.49x = 911,292.39 × 369,964.29
  4. Step 4: Simplify right side
    660,340.49x = 337,145,642,048.75
  5. Step 5: Solve for x
    x = 337,145,642,048.75/660,340.49
  6. Step 6: Final answer
    x = 510,563.34

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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.