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Finding the Fourth Proportional to 927,000, 1,279,260.16 and 503,064

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Solution

The fourth proportional to 927,000, 1,279,260.16 and 503,064 is: 694,228.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,000 : 1,279,260.16 = 503,064 : x
  2. Step 2: Convert to fraction form
    927,000/1,279,260.16 = 503,064/x
  3. Step 3: Cross multiply
    927,000x = 1,279,260.16 × 503,064
  4. Step 4: Simplify right side
    927,000x = 643,549,733,130.24
  5. Step 5: Solve for x
    x = 643,549,733,130.24/927,000
  6. Step 6: Final answer
    x = 694,228.41

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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.