Home / 820,133.61-1,131,785.08-457,557.52

Finding the Fourth Proportional to 820,133.61, 1,131,785.08 and 457,557.52

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Solution

The fourth proportional to 820,133.61, 1,131,785.08 and 457,557.52 is: 631,429.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,133.61 : 1,131,785.08 = 457,557.52 : x
  2. Step 2: Convert to fraction form
    820,133.61/1,131,785.08 = 457,557.52/x
  3. Step 3: Cross multiply
    820,133.61x = 1,131,785.08 × 457,557.52
  4. Step 4: Simplify right side
    820,133.61x = 517,856,774,377.80
  5. Step 5: Solve for x
    x = 517,856,774,377.80/820,133.61
  6. Step 6: Final answer
    x = 631,429.77

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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.