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Finding the Fourth Proportional to 611,151.82, 843,373.38 and 339,219.04

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Solution

The fourth proportional to 611,151.82, 843,373.38 and 339,219.04 is: 468,113.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,151.82 : 843,373.38 = 339,219.04 : x
  2. Step 2: Convert to fraction form
    611,151.82/843,373.38 = 339,219.04/x
  3. Step 3: Cross multiply
    611,151.82x = 843,373.38 × 339,219.04
  4. Step 4: Simplify right side
    611,151.82x = 286,088,308,325.16
  5. Step 5: Solve for x
    x = 286,088,308,325.16/611,151.82
  6. Step 6: Final answer
    x = 468,113.32

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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.