Home / 1,425,247.08-1,966,841.82-780,678.06

Finding the Fourth Proportional to 1,425,247.08, 1,966,841.82 and 780,678.06

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Solution

The fourth proportional to 1,425,247.08, 1,966,841.82 and 780,678.06 is: 1,077,336.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,247.08 : 1,966,841.82 = 780,678.06 : x
  2. Step 2: Convert to fraction form
    1,425,247.08/1,966,841.82 = 780,678.06/x
  3. Step 3: Cross multiply
    1,425,247.08x = 1,966,841.82 × 780,678.06
  4. Step 4: Simplify right side
    1,425,247.08x = 1,535,470,256,364.47
  5. Step 5: Solve for x
    x = 1,535,470,256,364.47/1,425,247.08
  6. Step 6: Final answer
    x = 1,077,336.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.