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Finding the Fourth Proportional to 559,896.63, 772,753.14 and 388,064.04

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Solution

The fourth proportional to 559,896.63, 772,753.14 and 388,064.04 is: 535,594.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,896.63 : 772,753.14 = 388,064.04 : x
  2. Step 2: Convert to fraction form
    559,896.63/772,753.14 = 388,064.04/x
  3. Step 3: Cross multiply
    559,896.63x = 772,753.14 × 388,064.04
  4. Step 4: Simplify right side
    559,896.63x = 299,877,705,431.09
  5. Step 5: Solve for x
    x = 299,877,705,431.09/559,896.63
  6. Step 6: Final answer
    x = 535,594.77

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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.