Home / 1,645,564.82-2,271,089.76-920,452.82

Finding the Fourth Proportional to 1,645,564.82, 2,271,089.76 and 920,452.82

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Solution

The fourth proportional to 1,645,564.82, 2,271,089.76 and 920,452.82 is: 1,270,342.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,564.82 : 2,271,089.76 = 920,452.82 : x
  2. Step 2: Convert to fraction form
    1,645,564.82/2,271,089.76 = 920,452.82/x
  3. Step 3: Cross multiply
    1,645,564.82x = 2,271,089.76 × 920,452.82
  4. Step 4: Simplify right side
    1,645,564.82x = 2,090,430,974,065.12
  5. Step 5: Solve for x
    x = 2,090,430,974,065.12/1,645,564.82
  6. Step 6: Final answer
    x = 1,270,342.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.