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Finding the Fourth Proportional to 567,503.29, 783,134.39 and 309,374.89

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Solution

The fourth proportional to 567,503.29, 783,134.39 and 309,374.89 is: 426,926.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,503.29 : 783,134.39 = 309,374.89 : x
  2. Step 2: Convert to fraction form
    567,503.29/783,134.39 = 309,374.89/x
  3. Step 3: Cross multiply
    567,503.29x = 783,134.39 × 309,374.89
  4. Step 4: Simplify right side
    567,503.29x = 242,282,114,214.59
  5. Step 5: Solve for x
    x = 242,282,114,214.59/567,503.29
  6. Step 6: Final answer
    x = 426,926.36

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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.