Home / 424,206.81-634,925.66-311,857.29

Finding the Fourth Proportional to 424,206.81, 634,925.66 and 311,857.29

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Solution

The fourth proportional to 424,206.81, 634,925.66 and 311,857.29 is: 466,768.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,206.81 : 634,925.66 = 311,857.29 : x
  2. Step 2: Convert to fraction form
    424,206.81/634,925.66 = 311,857.29/x
  3. Step 3: Cross multiply
    424,206.81x = 634,925.66 × 311,857.29
  4. Step 4: Simplify right side
    424,206.81x = 198,006,194,119.78
  5. Step 5: Solve for x
    x = 198,006,194,119.78/424,206.81
  6. Step 6: Final answer
    x = 466,768.07

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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.