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Finding the Fourth Proportional to 609,298.88, 915,570.40 and 570,992.40

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Solution

The fourth proportional to 609,298.88, 915,570.40 and 570,992.40 is: 858,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,298.88 : 915,570.40 = 570,992.40 : x
  2. Step 2: Convert to fraction form
    609,298.88/915,570.40 = 570,992.40/x
  3. Step 3: Cross multiply
    609,298.88x = 915,570.40 × 570,992.40
  4. Step 4: Simplify right side
    609,298.88x = 522,783,740,064.96
  5. Step 5: Solve for x
    x = 522,783,740,064.96/609,298.88
  6. Step 6: Final answer
    x = 858,008.70

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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.