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Finding the Fourth Proportional to 555,956.58, 767,221.40 and 301,307.70

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Solution

The fourth proportional to 555,956.58, 767,221.40 and 301,307.70 is: 415,805.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,956.58 : 767,221.40 = 301,307.70 : x
  2. Step 2: Convert to fraction form
    555,956.58/767,221.40 = 301,307.70/x
  3. Step 3: Cross multiply
    555,956.58x = 767,221.40 × 301,307.70
  4. Step 4: Simplify right side
    555,956.58x = 231,169,715,424.78
  5. Step 5: Solve for x
    x = 231,169,715,424.78/555,956.58
  6. Step 6: Final answer
    x = 415,805.34

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1.5x scale

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.