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Finding the Fourth Proportional to 576,030.20, 864,045.30 and 520,917.80

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Solution

The fourth proportional to 576,030.20, 864,045.30 and 520,917.80 is: 781,376.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,030.20 : 864,045.30 = 520,917.80 : x
  2. Step 2: Convert to fraction form
    576,030.20/864,045.30 = 520,917.80/x
  3. Step 3: Cross multiply
    576,030.20x = 864,045.30 × 520,917.80
  4. Step 4: Simplify right side
    576,030.20x = 450,096,576,776.34
  5. Step 5: Solve for x
    x = 450,096,576,776.34/576,030.20
  6. Step 6: Final answer
    x = 781,376.70

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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.