Home / 477,939.20-716,465.70-211,557.72

Finding the Fourth Proportional to 477,939.20, 716,465.70 and 211,557.72

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Solution

The fourth proportional to 477,939.20, 716,465.70 and 211,557.72 is: 317,140.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,939.20 : 716,465.70 = 211,557.72 : x
  2. Step 2: Convert to fraction form
    477,939.20/716,465.70 = 211,557.72/x
  3. Step 3: Cross multiply
    477,939.20x = 716,465.70 × 211,557.72
  4. Step 4: Simplify right side
    477,939.20x = 151,573,849,950.20
  5. Step 5: Solve for x
    x = 151,573,849,950.20/477,939.20
  6. Step 6: Final answer
    x = 317,140.44

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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.