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Finding the Fourth Proportional to 557,167.11, 768,893.68 and 302,518.30

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Solution

The fourth proportional to 557,167.11, 768,893.68 and 302,518.30 is: 417,476.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,167.11 : 768,893.68 = 302,518.30 : x
  2. Step 2: Convert to fraction form
    557,167.11/768,893.68 = 302,518.30/x
  3. Step 3: Cross multiply
    557,167.11x = 768,893.68 × 302,518.30
  4. Step 4: Simplify right side
    557,167.11x = 232,604,406,275.81
  5. Step 5: Solve for x
    x = 232,604,406,275.81/557,167.11
  6. Step 6: Final answer
    x = 417,476.92

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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.