Home / 1,238,230.54-1,708,034.19-778,617.70

Finding the Fourth Proportional to 1,238,230.54, 1,708,034.19 and 778,617.70

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Solution

The fourth proportional to 1,238,230.54, 1,708,034.19 and 778,617.70 is: 1,074,037.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,230.54 : 1,708,034.19 = 778,617.70 : x
  2. Step 2: Convert to fraction form
    1,238,230.54/1,708,034.19 = 778,617.70/x
  3. Step 3: Cross multiply
    1,238,230.54x = 1,708,034.19 × 778,617.70
  4. Step 4: Simplify right side
    1,238,230.54x = 1,329,905,652,539.16
  5. Step 5: Solve for x
    x = 1,329,905,652,539.16/1,238,230.54
  6. Step 6: Final answer
    x = 1,074,037.19

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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.