Home / 512,379,225.08-706,554,859.56-438,285,079.28

Finding the Fourth Proportional to 512,379,225.08, 706,554,859.56 and 438,285,079.28

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Solution

The fourth proportional to 512,379,225.08, 706,554,859.56 and 438,285,079.28 is: 604,381,359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,379,225.08 : 706,554,859.56 = 438,285,079.28 : x
  2. Step 2: Convert to fraction form
    512,379,225.08/706,554,859.56 = 438,285,079.28/x
  3. Step 3: Cross multiply
    512,379,225.08x = 706,554,859.56 × 438,285,079.28
  4. Step 4: Simplify right side
    512,379,225.08x = 309,672,452,637,923,840
  5. Step 5: Solve for x
    x = 309,672,452,637,923,840/512,379,225.08
  6. Step 6: Final answer
    x = 604,381,359.51

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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.