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Finding the Fourth Proportional to 522,686.97, 720,544.52 and 369,454.82

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Solution

The fourth proportional to 522,686.97, 720,544.52 and 369,454.82 is: 509,307.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,686.97 : 720,544.52 = 369,454.82 : x
  2. Step 2: Convert to fraction form
    522,686.97/720,544.52 = 369,454.82/x
  3. Step 3: Cross multiply
    522,686.97x = 720,544.52 × 369,454.82
  4. Step 4: Simplify right side
    522,686.97x = 266,208,640,488.59
  5. Step 5: Solve for x
    x = 266,208,640,488.59/522,686.97
  6. Step 6: Final answer
    x = 509,307.97

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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.