Home / 786,247.78-1,178,673.51-306,364.42

Finding the Fourth Proportional to 786,247.78, 1,178,673.51 and 306,364.42

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Solution

The fourth proportional to 786,247.78, 1,178,673.51 and 306,364.42 is: 459,274.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,247.78 : 1,178,673.51 = 306,364.42 : x
  2. Step 2: Convert to fraction form
    786,247.78/1,178,673.51 = 306,364.42/x
  3. Step 3: Cross multiply
    786,247.78x = 1,178,673.51 × 306,364.42
  4. Step 4: Simplify right side
    786,247.78x = 361,103,626,260.51
  5. Step 5: Solve for x
    x = 361,103,626,260.51/786,247.78
  6. Step 6: Final answer
    x = 459,274.59

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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.