Home / 906,128.20-1,359,969.90-401,465.80

Finding the Fourth Proportional to 906,128.20, 1,359,969.90 and 401,465.80

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Solution

The fourth proportional to 906,128.20, 1,359,969.90 and 401,465.80 is: 602,543.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,128.20 : 1,359,969.90 = 401,465.80 : x
  2. Step 2: Convert to fraction form
    906,128.20/1,359,969.90 = 401,465.80/x
  3. Step 3: Cross multiply
    906,128.20x = 1,359,969.90 × 401,465.80
  4. Step 4: Simplify right side
    906,128.20x = 545,981,403,879.42
  5. Step 5: Solve for x
    x = 545,981,403,879.42/906,128.20
  6. Step 6: Final answer
    x = 602,543.22

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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.