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Finding the Fourth Proportional to 562,679.25, 776,497.40 and 308,030.43

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Solution

The fourth proportional to 562,679.25, 776,497.40 and 308,030.43 is: 425,082.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,679.25 : 776,497.40 = 308,030.43 : x
  2. Step 2: Convert to fraction form
    562,679.25/776,497.40 = 308,030.43/x
  3. Step 3: Cross multiply
    562,679.25x = 776,497.40 × 308,030.43
  4. Step 4: Simplify right side
    562,679.25x = 239,184,828,015.88
  5. Step 5: Solve for x
    x = 239,184,828,015.88/562,679.25
  6. Step 6: Final answer
    x = 425,082.01

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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.