Home / 1,131,987.32-1,697,980.98-290,539.07

Finding the Fourth Proportional to 1,131,987.32, 1,697,980.98 and 290,539.07

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Solution

The fourth proportional to 1,131,987.32, 1,697,980.98 and 290,539.07 is: 435,808.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,987.32 : 1,697,980.98 = 290,539.07 : x
  2. Step 2: Convert to fraction form
    1,131,987.32/1,697,980.98 = 290,539.07/x
  3. Step 3: Cross multiply
    1,131,987.32x = 1,697,980.98 × 290,539.07
  4. Step 4: Simplify right side
    1,131,987.32x = 493,329,814,806.89
  5. Step 5: Solve for x
    x = 493,329,814,806.89/1,131,987.32
  6. Step 6: Final answer
    x = 435,808.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.