Home / 841,919.72-1,263,377.93-309,814.52

Finding the Fourth Proportional to 841,919.72, 1,263,377.93 and 309,814.52

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Solution

The fourth proportional to 841,919.72, 1,263,377.93 and 309,814.52 is: 464,905.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,919.72 : 1,263,377.93 = 309,814.52 : x
  2. Step 2: Convert to fraction form
    841,919.72/1,263,377.93 = 309,814.52/x
  3. Step 3: Cross multiply
    841,919.72x = 1,263,377.93 × 309,814.52
  4. Step 4: Simplify right side
    841,919.72x = 391,412,819,095.58
  5. Step 5: Solve for x
    x = 391,412,819,095.58/841,919.72
  6. Step 6: Final answer
    x = 464,905.16

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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.