Home / 820,248.77-1,131,946.43-457,687.91

Finding the Fourth Proportional to 820,248.77, 1,131,946.43 and 457,687.91

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Solution

The fourth proportional to 820,248.77, 1,131,946.43 and 457,687.91 is: 631,611.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,248.77 : 1,131,946.43 = 457,687.91 : x
  2. Step 2: Convert to fraction form
    820,248.77/1,131,946.43 = 457,687.91/x
  3. Step 3: Cross multiply
    820,248.77x = 1,131,946.43 × 457,687.91
  4. Step 4: Simplify right side
    820,248.77x = 518,078,187,830.49
  5. Step 5: Solve for x
    x = 518,078,187,830.49/820,248.77
  6. Step 6: Final answer
    x = 631,611.06

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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.