Home / 808,857.40-1,214,063.70-409,948.60

Finding the Fourth Proportional to 808,857.40, 1,214,063.70 and 409,948.60

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Solution

The fourth proportional to 808,857.40, 1,214,063.70 and 409,948.60 is: 615,317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,857.40 : 1,214,063.70 = 409,948.60 : x
  2. Step 2: Convert to fraction form
    808,857.40/1,214,063.70 = 409,948.60/x
  3. Step 3: Cross multiply
    808,857.40x = 1,214,063.70 × 409,948.60
  4. Step 4: Simplify right side
    808,857.40x = 497,703,714,125.82
  5. Step 5: Solve for x
    x = 497,703,714,125.82/808,857.40
  6. Step 6: Final answer
    x = 615,317.01

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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.