Home / 743,499.04-1,115,290.80-210,977.92

Finding the Fourth Proportional to 743,499.04, 1,115,290.80 and 210,977.92

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Solution

The fourth proportional to 743,499.04, 1,115,290.80 and 210,977.92 is: 316,478.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,499.04 : 1,115,290.80 = 210,977.92 : x
  2. Step 2: Convert to fraction form
    743,499.04/1,115,290.80 = 210,977.92/x
  3. Step 3: Cross multiply
    743,499.04x = 1,115,290.80 × 210,977.92
  4. Step 4: Simplify right side
    743,499.04x = 235,301,733,179.14
  5. Step 5: Solve for x
    x = 235,301,733,179.14/743,499.04
  6. Step 6: Final answer
    x = 316,478.87

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1.5x scale

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.