Home / 522,056.02-720,422.49-307,146.82

Finding the Fourth Proportional to 522,056.02, 720,422.49 and 307,146.82

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Solution

The fourth proportional to 522,056.02, 720,422.49 and 307,146.82 is: 423,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,056.02 : 720,422.49 = 307,146.82 : x
  2. Step 2: Convert to fraction form
    522,056.02/720,422.49 = 307,146.82/x
  3. Step 3: Cross multiply
    522,056.02x = 720,422.49 × 307,146.82
  4. Step 4: Simplify right side
    522,056.02x = 221,275,476,859.98
  5. Step 5: Solve for x
    x = 221,275,476,859.98/522,056.02
  6. Step 6: Final answer
    x = 423,853.89

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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.