Home / 1,211,565.04-1,671,971.18-667,720.44

Finding the Fourth Proportional to 1,211,565.04, 1,671,971.18 and 667,720.44

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Solution

The fourth proportional to 1,211,565.04, 1,671,971.18 and 667,720.44 is: 921,460.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,565.04 : 1,671,971.18 = 667,720.44 : x
  2. Step 2: Convert to fraction form
    1,211,565.04/1,671,971.18 = 667,720.44/x
  3. Step 3: Cross multiply
    1,211,565.04x = 1,671,971.18 × 667,720.44
  4. Step 4: Simplify right side
    1,211,565.04x = 1,116,409,331,976.92
  5. Step 5: Solve for x
    x = 1,116,409,331,976.92/1,211,565.04
  6. Step 6: Final answer
    x = 921,460.50

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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.