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Finding the Fourth Proportional to 520,472.72, 778,549.39 and 488,586.26

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Solution

The fourth proportional to 520,472.72, 778,549.39 and 488,586.26 is: 730,852.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,472.72 : 778,549.39 = 488,586.26 : x
  2. Step 2: Convert to fraction form
    520,472.72/778,549.39 = 488,586.26/x
  3. Step 3: Cross multiply
    520,472.72x = 778,549.39 × 488,586.26
  4. Step 4: Simplify right side
    520,472.72x = 380,388,535,410.29
  5. Step 5: Solve for x
    x = 380,388,535,410.29/520,472.72
  6. Step 6: Final answer
    x = 730,852.01

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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.