Home / 839,455.49-1,259,307.17-299,669.87

Finding the Fourth Proportional to 839,455.49, 1,259,307.17 and 299,669.87

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Solution

The fourth proportional to 839,455.49, 1,259,307.17 and 299,669.87 is: 449,549.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,455.49 : 1,259,307.17 = 299,669.87 : x
  2. Step 2: Convert to fraction form
    839,455.49/1,259,307.17 = 299,669.87/x
  3. Step 3: Cross multiply
    839,455.49x = 1,259,307.17 × 299,669.87
  4. Step 4: Simplify right side
    839,455.49x = 377,376,415,923.97
  5. Step 5: Solve for x
    x = 377,376,415,923.97/839,455.49
  6. Step 6: Final answer
    x = 449,549.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.