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Finding the Fourth Proportional to 570,055.82, 786,334.31 and 376,465.31

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Solution

The fourth proportional to 570,055.82, 786,334.31 and 376,465.31 is: 519,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,055.82 : 786,334.31 = 376,465.31 : x
  2. Step 2: Convert to fraction form
    570,055.82/786,334.31 = 376,465.31/x
  3. Step 3: Cross multiply
    570,055.82x = 786,334.31 × 376,465.31
  4. Step 4: Simplify right side
    570,055.82x = 296,027,589,861.30
  5. Step 5: Solve for x
    x = 296,027,589,861.30/570,055.82
  6. Step 6: Final answer
    x = 519,295.80

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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.