Home / 777,285.96-1,072,640.23-423,669.82

Finding the Fourth Proportional to 777,285.96, 1,072,640.23 and 423,669.82

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Solution

The fourth proportional to 777,285.96, 1,072,640.23 and 423,669.82 is: 584,656.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,285.96 : 1,072,640.23 = 423,669.82 : x
  2. Step 2: Convert to fraction form
    777,285.96/1,072,640.23 = 423,669.82/x
  3. Step 3: Cross multiply
    777,285.96x = 1,072,640.23 × 423,669.82
  4. Step 4: Simplify right side
    777,285.96x = 454,445,293,168.86
  5. Step 5: Solve for x
    x = 454,445,293,168.86/777,285.96
  6. Step 6: Final answer
    x = 584,656.51

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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.