Home / 1,247,830.30-1,722,005.88-674,870.32

Finding the Fourth Proportional to 1,247,830.30, 1,722,005.88 and 674,870.32

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Solution

The fourth proportional to 1,247,830.30, 1,722,005.88 and 674,870.32 is: 931,321.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,830.30 : 1,722,005.88 = 674,870.32 : x
  2. Step 2: Convert to fraction form
    1,247,830.30/1,722,005.88 = 674,870.32/x
  3. Step 3: Cross multiply
    1,247,830.30x = 1,722,005.88 × 674,870.32
  4. Step 4: Simplify right side
    1,247,830.30x = 1,162,130,650,667.45
  5. Step 5: Solve for x
    x = 1,162,130,650,667.45/1,247,830.30
  6. Step 6: Final answer
    x = 931,321.07

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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.