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Finding the Fourth Proportional to 556,036.50, 767,332.02 and 301,388.70

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Solution

The fourth proportional to 556,036.50, 767,332.02 and 301,388.70 is: 415,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,036.50 : 767,332.02 = 301,388.70 : x
  2. Step 2: Convert to fraction form
    556,036.50/767,332.02 = 301,388.70/x
  3. Step 3: Cross multiply
    556,036.50x = 767,332.02 × 301,388.70
  4. Step 4: Simplify right side
    556,036.50x = 231,265,199,976.17
  5. Step 5: Solve for x
    x = 231,265,199,976.17/556,036.50
  6. Step 6: Final answer
    x = 415,917.30

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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.