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Finding the Fourth Proportional to 569,129.78, 785,443.89 and 324,124.95

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Solution

The fourth proportional to 569,129.78, 785,443.89 and 324,124.95 is: 447,317.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,129.78 : 785,443.89 = 324,124.95 : x
  2. Step 2: Convert to fraction form
    569,129.78/785,443.89 = 324,124.95/x
  3. Step 3: Cross multiply
    569,129.78x = 785,443.89 × 324,124.95
  4. Step 4: Simplify right side
    569,129.78x = 254,581,961,574.06
  5. Step 5: Solve for x
    x = 254,581,961,574.06/569,129.78
  6. Step 6: Final answer
    x = 447,317.95

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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.