Home / 808,514.10-1,211,750.55-409,265.10

Finding the Fourth Proportional to 808,514.10, 1,211,750.55 and 409,265.10

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Solution

The fourth proportional to 808,514.10, 1,211,750.55 and 409,265.10 is: 613,381.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,514.10 : 1,211,750.55 = 409,265.10 : x
  2. Step 2: Convert to fraction form
    808,514.10/1,211,750.55 = 409,265.10/x
  3. Step 3: Cross multiply
    808,514.10x = 1,211,750.55 × 409,265.10
  4. Step 4: Simplify right side
    808,514.10x = 495,927,210,020.81
  5. Step 5: Solve for x
    x = 495,927,210,020.81/808,514.10
  6. Step 6: Final answer
    x = 613,381.03

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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.