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Finding the Fourth Proportional to 551,156.86, 760,537.56 and 309,466

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Solution

The fourth proportional to 551,156.86, 760,537.56 and 309,466 is: 427,030.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,156.86 : 760,537.56 = 309,466 : x
  2. Step 2: Convert to fraction form
    551,156.86/760,537.56 = 309,466/x
  3. Step 3: Cross multiply
    551,156.86x = 760,537.56 × 309,466
  4. Step 4: Simplify right side
    551,156.86x = 235,360,516,542.96
  5. Step 5: Solve for x
    x = 235,360,516,542.96/551,156.86
  6. Step 6: Final answer
    x = 427,030.00

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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.