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Finding the Fourth Proportional to 559,700.88, 772,403.52 and 305,068.56

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Solution

The fourth proportional to 559,700.88, 772,403.52 and 305,068.56 is: 421,003.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,700.88 : 772,403.52 = 305,068.56 : x
  2. Step 2: Convert to fraction form
    559,700.88/772,403.52 = 305,068.56/x
  3. Step 3: Cross multiply
    559,700.88x = 772,403.52 × 305,068.56
  4. Step 4: Simplify right side
    559,700.88x = 235,636,029,585.33
  5. Step 5: Solve for x
    x = 235,636,029,585.33/559,700.88
  6. Step 6: Final answer
    x = 421,003.50

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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.