Home / 1,276,718.14-1,915,357.27-378,230.10

Finding the Fourth Proportional to 1,276,718.14, 1,915,357.27 and 378,230.10

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Solution

The fourth proportional to 1,276,718.14, 1,915,357.27 and 378,230.10 is: 567,428.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,718.14 : 1,915,357.27 = 378,230.10 : x
  2. Step 2: Convert to fraction form
    1,276,718.14/1,915,357.27 = 378,230.10/x
  3. Step 3: Cross multiply
    1,276,718.14x = 1,915,357.27 × 378,230.10
  4. Step 4: Simplify right side
    1,276,718.14x = 724,445,771,767.83
  5. Step 5: Solve for x
    x = 724,445,771,767.83/1,276,718.14
  6. Step 6: Final answer
    x = 567,428.12

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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.