Home / 1,213,286.40-1,820,148.30-503,386.20

Finding the Fourth Proportional to 1,213,286.40, 1,820,148.30 and 503,386.20

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Solution

The fourth proportional to 1,213,286.40, 1,820,148.30 and 503,386.20 is: 755,170.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,286.40 : 1,820,148.30 = 503,386.20 : x
  2. Step 2: Convert to fraction form
    1,213,286.40/1,820,148.30 = 503,386.20/x
  3. Step 3: Cross multiply
    1,213,286.40x = 1,820,148.30 × 503,386.20
  4. Step 4: Simplify right side
    1,213,286.40x = 916,237,536,173.46
  5. Step 5: Solve for x
    x = 916,237,536,173.46/1,213,286.40
  6. Step 6: Final answer
    x = 755,170.04

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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.