Home / 820,026.06-1,131,443.19-497,728.14

Finding the Fourth Proportional to 820,026.06, 1,131,443.19 and 497,728.14

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Solution

The fourth proportional to 820,026.06, 1,131,443.19 and 497,728.14 is: 686,747.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,026.06 : 1,131,443.19 = 497,728.14 : x
  2. Step 2: Convert to fraction form
    820,026.06/1,131,443.19 = 497,728.14/x
  3. Step 3: Cross multiply
    820,026.06x = 1,131,443.19 × 497,728.14
  4. Step 4: Simplify right side
    820,026.06x = 563,151,114,474.37
  5. Step 5: Solve for x
    x = 563,151,114,474.37/820,026.06
  6. Step 6: Final answer
    x = 686,747.83

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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.