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Finding the Fourth Proportional to 559,836, 772,674.93 and 330,379.20

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Solution

The fourth proportional to 559,836, 772,674.93 and 330,379.20 is: 455,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,836 : 772,674.93 = 330,379.20 : x
  2. Step 2: Convert to fraction form
    559,836/772,674.93 = 330,379.20/x
  3. Step 3: Cross multiply
    559,836x = 772,674.93 × 330,379.20
  4. Step 4: Simplify right side
    559,836x = 255,275,725,233.46
  5. Step 5: Solve for x
    x = 255,275,725,233.46/559,836
  6. Step 6: Final answer
    x = 455,983.05

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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.