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Finding the Fourth Proportional to 556,801.79, 768,388.48 and 302,152.91

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Solution

The fourth proportional to 556,801.79, 768,388.48 and 302,152.91 is: 416,972.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,801.79 : 768,388.48 = 302,152.91 : x
  2. Step 2: Convert to fraction form
    556,801.79/768,388.48 = 302,152.91/x
  3. Step 3: Cross multiply
    556,801.79x = 768,388.48 × 302,152.91
  4. Step 4: Simplify right side
    556,801.79x = 232,170,810,645.15
  5. Step 5: Solve for x
    x = 232,170,810,645.15/556,801.79
  6. Step 6: Final answer
    x = 416,972.10

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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.