Home / 900,009.09-1,350,678.02-426,696.21

Finding the Fourth Proportional to 900,009.09, 1,350,678.02 and 426,696.21

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Solution

The fourth proportional to 900,009.09, 1,350,678.02 and 426,696.21 is: 640,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,009.09 : 1,350,678.02 = 426,696.21 : x
  2. Step 2: Convert to fraction form
    900,009.09/1,350,678.02 = 426,696.21/x
  3. Step 3: Cross multiply
    900,009.09x = 1,350,678.02 × 426,696.21
  4. Step 4: Simplify right side
    900,009.09x = 576,329,189,930.82
  5. Step 5: Solve for x
    x = 576,329,189,930.82/900,009.09
  6. Step 6: Final answer
    x = 640,359.30

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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.