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Finding the Fourth Proportional to 611,152.32, 843,374.07 and 339,219.51

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Solution

The fourth proportional to 611,152.32, 843,374.07 and 339,219.51 is: 468,113.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,152.32 : 843,374.07 = 339,219.51 : x
  2. Step 2: Convert to fraction form
    611,152.32/843,374.07 = 339,219.51/x
  3. Step 3: Cross multiply
    611,152.32x = 843,374.07 × 339,219.51
  4. Step 4: Simplify right side
    611,152.32x = 286,088,938,772.11
  5. Step 5: Solve for x
    x = 286,088,938,772.11/611,152.32
  6. Step 6: Final answer
    x = 468,113.97

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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.