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Finding the Fourth Proportional to 555,956.10, 767,220.72 and 301,307.22

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Solution

The fourth proportional to 555,956.10, 767,220.72 and 301,307.22 is: 415,804.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,956.10 : 767,220.72 = 301,307.22 : x
  2. Step 2: Convert to fraction form
    555,956.10/767,220.72 = 301,307.22/x
  3. Step 3: Cross multiply
    555,956.10x = 767,220.72 × 301,307.22
  4. Step 4: Simplify right side
    555,956.10x = 231,169,142,269.60
  5. Step 5: Solve for x
    x = 231,169,142,269.60/555,956.10
  6. Step 6: Final answer
    x = 415,804.67

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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.