Home / 820,129.67-1,131,779.66-457,553.61

Finding the Fourth Proportional to 820,129.67, 1,131,779.66 and 457,553.61

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Solution

The fourth proportional to 820,129.67, 1,131,779.66 and 457,553.61 is: 631,424.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,129.67 : 1,131,779.66 = 457,553.61 : x
  2. Step 2: Convert to fraction form
    820,129.67/1,131,779.66 = 457,553.61/x
  3. Step 3: Cross multiply
    820,129.67x = 1,131,779.66 × 457,553.61
  4. Step 4: Simplify right side
    820,129.67x = 517,849,866,869.81
  5. Step 5: Solve for x
    x = 517,849,866,869.81/820,129.67
  6. Step 6: Final answer
    x = 631,424.38

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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.