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Finding the Fourth Proportional to 567,208.86, 782,738.16 and 309,088.06

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Solution

The fourth proportional to 567,208.86, 782,738.16 and 309,088.06 is: 426,536.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,208.86 : 782,738.16 = 309,088.06 : x
  2. Step 2: Convert to fraction form
    567,208.86/782,738.16 = 309,088.06/x
  3. Step 3: Cross multiply
    567,208.86x = 782,738.16 × 309,088.06
  4. Step 4: Simplify right side
    567,208.86x = 241,935,019,362.37
  5. Step 5: Solve for x
    x = 241,935,019,362.37/567,208.86
  6. Step 6: Final answer
    x = 426,536.04

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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.