Home / 1,238,219.04-1,708,018.32-778,606.20

Finding the Fourth Proportional to 1,238,219.04, 1,708,018.32 and 778,606.20

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Solution

The fourth proportional to 1,238,219.04, 1,708,018.32 and 778,606.20 is: 1,074,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,219.04 : 1,708,018.32 = 778,606.20 : x
  2. Step 2: Convert to fraction form
    1,238,219.04/1,708,018.32 = 778,606.20/x
  3. Step 3: Cross multiply
    1,238,219.04x = 1,708,018.32 × 778,606.20
  4. Step 4: Simplify right side
    1,238,219.04x = 1,329,873,653,665.58
  5. Step 5: Solve for x
    x = 1,329,873,653,665.58/1,238,219.04
  6. Step 6: Final answer
    x = 1,074,021.32

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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.