Home / 683,543.15-943,285.07-377,639.26

Finding the Fourth Proportional to 683,543.15, 943,285.07 and 377,639.26

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Solution

The fourth proportional to 683,543.15, 943,285.07 and 377,639.26 is: 521,139.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,543.15 : 943,285.07 = 377,639.26 : x
  2. Step 2: Convert to fraction form
    683,543.15/943,285.07 = 377,639.26/x
  3. Step 3: Cross multiply
    683,543.15x = 943,285.07 × 377,639.26
  4. Step 4: Simplify right side
    683,543.15x = 356,221,478,633.60
  5. Step 5: Solve for x
    x = 356,221,478,633.60/683,543.15
  6. Step 6: Final answer
    x = 521,139.71

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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.