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Finding the Fourth Proportional to 556,788.53, 768,370.27 and 302,139.74

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Solution

The fourth proportional to 556,788.53, 768,370.27 and 302,139.74 is: 416,953.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,788.53 : 768,370.27 = 302,139.74 : x
  2. Step 2: Convert to fraction form
    556,788.53/768,370.27 = 302,139.74/x
  3. Step 3: Cross multiply
    556,788.53x = 768,370.27 × 302,139.74
  4. Step 4: Simplify right side
    556,788.53x = 232,155,193,601.53
  5. Step 5: Solve for x
    x = 232,155,193,601.53/556,788.53
  6. Step 6: Final answer
    x = 416,953.98

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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.