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Finding the Fourth Proportional to 520,032.60, 780,048.90 and 296,083.80

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Solution

The fourth proportional to 520,032.60, 780,048.90 and 296,083.80 is: 444,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,032.60 : 780,048.90 = 296,083.80 : x
  2. Step 2: Convert to fraction form
    520,032.60/780,048.90 = 296,083.80/x
  3. Step 3: Cross multiply
    520,032.60x = 780,048.90 × 296,083.80
  4. Step 4: Simplify right side
    520,032.60x = 230,959,842,497.82
  5. Step 5: Solve for x
    x = 230,959,842,497.82/520,032.60
  6. Step 6: Final answer
    x = 444,125.70

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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.