Home / 939,935.49-1,409,465.84-340,872.45

Finding the Fourth Proportional to 939,935.49, 1,409,465.84 and 340,872.45

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Solution

The fourth proportional to 939,935.49, 1,409,465.84 and 340,872.45 is: 511,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,935.49 : 1,409,465.84 = 340,872.45 : x
  2. Step 2: Convert to fraction form
    939,935.49/1,409,465.84 = 340,872.45/x
  3. Step 3: Cross multiply
    939,935.49x = 1,409,465.84 × 340,872.45
  4. Step 4: Simplify right side
    939,935.49x = 480,448,072,367.75
  5. Step 5: Solve for x
    x = 480,448,072,367.75/939,935.49
  6. Step 6: Final answer
    x = 511,150.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.