Home / 905,130.98-1,248,942.04-523,084.04

Finding the Fourth Proportional to 905,130.98, 1,248,942.04 and 523,084.04

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Solution

The fourth proportional to 905,130.98, 1,248,942.04 and 523,084.04 is: 721,775.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,130.98 : 1,248,942.04 = 523,084.04 : x
  2. Step 2: Convert to fraction form
    905,130.98/1,248,942.04 = 523,084.04/x
  3. Step 3: Cross multiply
    905,130.98x = 1,248,942.04 × 523,084.04
  4. Step 4: Simplify right side
    905,130.98x = 653,301,648,009.04
  5. Step 5: Solve for x
    x = 653,301,648,009.04/905,130.98
  6. Step 6: Final answer
    x = 721,775.81

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1.5x scale

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.