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Finding the Fourth Proportional to 540,037.83, 745,188.33 and 298,305.90

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Solution

The fourth proportional to 540,037.83, 745,188.33 and 298,305.90 is: 411,626.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,037.83 : 745,188.33 = 298,305.90 : x
  2. Step 2: Convert to fraction form
    540,037.83/745,188.33 = 298,305.90/x
  3. Step 3: Cross multiply
    540,037.83x = 745,188.33 × 298,305.90
  4. Step 4: Simplify right side
    540,037.83x = 222,294,075,450.15
  5. Step 5: Solve for x
    x = 222,294,075,450.15/540,037.83
  6. Step 6: Final answer
    x = 411,626.86

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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.