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Finding the Fourth Proportional to 672,059.96, 927,431.88 and 366,140

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Solution

The fourth proportional to 672,059.96, 927,431.88 and 366,140 is: 505,267.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,059.96 : 927,431.88 = 366,140 : x
  2. Step 2: Convert to fraction form
    672,059.96/927,431.88 = 366,140/x
  3. Step 3: Cross multiply
    672,059.96x = 927,431.88 × 366,140
  4. Step 4: Simplify right side
    672,059.96x = 339,569,908,543.20
  5. Step 5: Solve for x
    x = 339,569,908,543.20/672,059.96
  6. Step 6: Final answer
    x = 505,267.28

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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.