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Finding the Fourth Proportional to 562,967.52, 776,887.20 and 308,318.64

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Solution

The fourth proportional to 562,967.52, 776,887.20 and 308,318.64 is: 425,475.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,967.52 : 776,887.20 = 308,318.64 : x
  2. Step 2: Convert to fraction form
    562,967.52/776,887.20 = 308,318.64/x
  3. Step 3: Cross multiply
    562,967.52x = 776,887.20 × 308,318.64
  4. Step 4: Simplify right side
    562,967.52x = 239,528,804,937.41
  5. Step 5: Solve for x
    x = 239,528,804,937.41/562,967.52
  6. Step 6: Final answer
    x = 425,475.35

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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.