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Finding the Fourth Proportional to 556,902.30, 768,520.53 and 302,253.42

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Solution

The fourth proportional to 556,902.30, 768,520.53 and 302,253.42 is: 417,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,902.30 : 768,520.53 = 302,253.42 : x
  2. Step 2: Convert to fraction form
    556,902.30/768,520.53 = 302,253.42/x
  3. Step 3: Cross multiply
    556,902.30x = 768,520.53 × 302,253.42
  4. Step 4: Simplify right side
    556,902.30x = 232,287,958,532.71
  5. Step 5: Solve for x
    x = 232,287,958,532.71/556,902.30
  6. Step 6: Final answer
    x = 417,107.20

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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.