Home / 655,837.02-983,607.90-428,060.94

Finding the Fourth Proportional to 655,837.02, 983,607.90 and 428,060.94

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Solution

The fourth proportional to 655,837.02, 983,607.90 and 428,060.94 is: 641,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,837.02 : 983,607.90 = 428,060.94 : x
  2. Step 2: Convert to fraction form
    655,837.02/983,607.90 = 428,060.94/x
  3. Step 3: Cross multiply
    655,837.02x = 983,607.90 × 428,060.94
  4. Step 4: Simplify right side
    655,837.02x = 421,044,122,265.43
  5. Step 5: Solve for x
    x = 421,044,122,265.43/655,837.02
  6. Step 6: Final answer
    x = 641,995.05

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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.