Home / 520,072.24-779,953.80-220,548.40

Finding the Fourth Proportional to 520,072.24, 779,953.80 and 220,548.40

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Solution

The fourth proportional to 520,072.24, 779,953.80 and 220,548.40 is: 330,757.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,072.24 : 779,953.80 = 220,548.40 : x
  2. Step 2: Convert to fraction form
    520,072.24/779,953.80 = 220,548.40/x
  3. Step 3: Cross multiply
    520,072.24x = 779,953.80 × 220,548.40
  4. Step 4: Simplify right side
    520,072.24x = 172,017,562,663.92
  5. Step 5: Solve for x
    x = 172,017,562,663.92/520,072.24
  6. Step 6: Final answer
    x = 330,757.06

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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.