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Finding the Fourth Proportional to 562,755.79, 776,603.01 and 308,107

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Solution

The fourth proportional to 562,755.79, 776,603.01 and 308,107 is: 425,187.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,755.79 : 776,603.01 = 308,107 : x
  2. Step 2: Convert to fraction form
    562,755.79/776,603.01 = 308,107/x
  3. Step 3: Cross multiply
    562,755.79x = 776,603.01 × 308,107
  4. Step 4: Simplify right side
    562,755.79x = 239,276,823,602.07
  5. Step 5: Solve for x
    x = 239,276,823,602.07/562,755.79
  6. Step 6: Final answer
    x = 425,187.67

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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.