Home / 745,145.70-1,118,010.15-271,878.90

Finding the Fourth Proportional to 745,145.70, 1,118,010.15 and 271,878.90

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Solution

The fourth proportional to 745,145.70, 1,118,010.15 and 271,878.90 is: 407,924.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,145.70 : 1,118,010.15 = 271,878.90 : x
  2. Step 2: Convert to fraction form
    745,145.70/1,118,010.15 = 271,878.90/x
  3. Step 3: Cross multiply
    745,145.70x = 1,118,010.15 × 271,878.90
  4. Step 4: Simplify right side
    745,145.70x = 303,963,369,770.84
  5. Step 5: Solve for x
    x = 303,963,369,770.84/745,145.70
  6. Step 6: Final answer
    x = 407,924.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.