Home / 1,276,718.07-1,915,357.44-378,230.16

Finding the Fourth Proportional to 1,276,718.07, 1,915,357.44 and 378,230.16

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Solution

The fourth proportional to 1,276,718.07, 1,915,357.44 and 378,230.16 is: 567,428.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,718.07 : 1,915,357.44 = 378,230.16 : x
  2. Step 2: Convert to fraction form
    1,276,718.07/1,915,357.44 = 378,230.16/x
  3. Step 3: Cross multiply
    1,276,718.07x = 1,915,357.44 × 378,230.16
  4. Step 4: Simplify right side
    1,276,718.07x = 724,445,950,988.39
  5. Step 5: Solve for x
    x = 724,445,950,988.39/1,276,718.07
  6. Step 6: Final answer
    x = 567,428.29

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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.