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Finding the Fourth Proportional to 655,523.07, 904,638.74 and 369,053.40

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Solution

The fourth proportional to 655,523.07, 904,638.74 and 369,053.40 is: 509,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,523.07 : 904,638.74 = 369,053.40 : x
  2. Step 2: Convert to fraction form
    655,523.07/904,638.74 = 369,053.40/x
  3. Step 3: Cross multiply
    655,523.07x = 904,638.74 × 369,053.40
  4. Step 4: Simplify right side
    655,523.07x = 333,860,002,768.72
  5. Step 5: Solve for x
    x = 333,860,002,768.72/655,523.07
  6. Step 6: Final answer
    x = 509,303.21

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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.