Home / 479,939.28-719,460.18-213,555.12

Finding the Fourth Proportional to 479,939.28, 719,460.18 and 213,555.12

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Solution

The fourth proportional to 479,939.28, 719,460.18 and 213,555.12 is: 320,133.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,939.28 : 719,460.18 = 213,555.12 : x
  2. Step 2: Convert to fraction form
    479,939.28/719,460.18 = 213,555.12/x
  3. Step 3: Cross multiply
    479,939.28x = 719,460.18 × 213,555.12
  4. Step 4: Simplify right side
    479,939.28x = 153,644,405,075.12
  5. Step 5: Solve for x
    x = 153,644,405,075.12/479,939.28
  6. Step 6: Final answer
    x = 320,133.01

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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.