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Finding the Fourth Proportional to 557,108.88, 768,810.24 and 302,460.12

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Solution

The fourth proportional to 557,108.88, 768,810.24 and 302,460.12 is: 417,394.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,108.88 : 768,810.24 = 302,460.12 : x
  2. Step 2: Convert to fraction form
    557,108.88/768,810.24 = 302,460.12/x
  3. Step 3: Cross multiply
    557,108.88x = 768,810.24 × 302,460.12
  4. Step 4: Simplify right side
    557,108.88x = 232,534,437,447.63
  5. Step 5: Solve for x
    x = 232,534,437,447.63/557,108.88
  6. Step 6: Final answer
    x = 417,394.96

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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.