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Finding the Fourth Proportional to 608,943.76, 840,330.32 and 336,995.84

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Solution

The fourth proportional to 608,943.76, 840,330.32 and 336,995.84 is: 465,047.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,943.76 : 840,330.32 = 336,995.84 : x
  2. Step 2: Convert to fraction form
    608,943.76/840,330.32 = 336,995.84/x
  3. Step 3: Cross multiply
    608,943.76x = 840,330.32 × 336,995.84
  4. Step 4: Simplify right side
    608,943.76x = 283,187,822,065.87
  5. Step 5: Solve for x
    x = 283,187,822,065.87/608,943.76
  6. Step 6: Final answer
    x = 465,047.58

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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.