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Finding the Fourth Proportional to 556,677.90, 768,215.34 and 302,029.02

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Solution

The fourth proportional to 556,677.90, 768,215.34 and 302,029.02 is: 416,799.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,677.90 : 768,215.34 = 302,029.02 : x
  2. Step 2: Convert to fraction form
    556,677.90/768,215.34 = 302,029.02/x
  3. Step 3: Cross multiply
    556,677.90x = 768,215.34 × 302,029.02
  4. Step 4: Simplify right side
    556,677.90x = 232,023,326,289.17
  5. Step 5: Solve for x
    x = 232,023,326,289.17/556,677.90
  6. Step 6: Final answer
    x = 416,799.96

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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.