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Finding the Fourth Proportional to 611,152.82, 843,374.76 and 339,220.04

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Solution

The fourth proportional to 611,152.82, 843,374.76 and 339,220.04 is: 468,114.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,152.82 : 843,374.76 = 339,220.04 : x
  2. Step 2: Convert to fraction form
    611,152.82/843,374.76 = 339,220.04/x
  3. Step 3: Cross multiply
    611,152.82x = 843,374.76 × 339,220.04
  4. Step 4: Simplify right side
    611,152.82x = 286,089,619,822.19
  5. Step 5: Solve for x
    x = 286,089,619,822.19/611,152.82
  6. Step 6: Final answer
    x = 468,114.70

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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.