Home / 745,878.20-1,119,254.70-272,611.40

Finding the Fourth Proportional to 745,878.20, 1,119,254.70 and 272,611.40

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Solution

The fourth proportional to 745,878.20, 1,119,254.70 and 272,611.40 is: 409,076.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,878.20 : 1,119,254.70 = 272,611.40 : x
  2. Step 2: Convert to fraction form
    745,878.20/1,119,254.70 = 272,611.40/x
  3. Step 3: Cross multiply
    745,878.20x = 1,119,254.70 × 272,611.40
  4. Step 4: Simplify right side
    745,878.20x = 305,121,590,723.58
  5. Step 5: Solve for x
    x = 305,121,590,723.58/745,878.20
  6. Step 6: Final answer
    x = 409,076.97

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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.