Home / 1,276,713.27-1,915,350.21-378,225.36

Finding the Fourth Proportional to 1,276,713.27, 1,915,350.21 and 378,225.36

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Solution

The fourth proportional to 1,276,713.27, 1,915,350.21 and 378,225.36 is: 567,421.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,713.27 : 1,915,350.21 = 378,225.36 : x
  2. Step 2: Convert to fraction form
    1,276,713.27/1,915,350.21 = 378,225.36/x
  3. Step 3: Cross multiply
    1,276,713.27x = 1,915,350.21 × 378,225.36
  4. Step 4: Simplify right side
    1,276,713.27x = 724,434,022,703.33
  5. Step 5: Solve for x
    x = 724,434,022,703.33/1,276,713.27
  6. Step 6: Final answer
    x = 567,421.08

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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.