Home / 578,081.20-865,809.60-297,270.40

Finding the Fourth Proportional to 578,081.20, 865,809.60 and 297,270.40

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Solution

The fourth proportional to 578,081.20, 865,809.60 and 297,270.40 is: 445,230.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,081.20 : 865,809.60 = 297,270.40 : x
  2. Step 2: Convert to fraction form
    578,081.20/865,809.60 = 297,270.40/x
  3. Step 3: Cross multiply
    578,081.20x = 865,809.60 × 297,270.40
  4. Step 4: Simplify right side
    578,081.20x = 257,379,566,115.84
  5. Step 5: Solve for x
    x = 257,379,566,115.84/578,081.20
  6. Step 6: Final answer
    x = 445,230.82

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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.