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Finding the Fourth Proportional to 623,770.65, 860,802.89 and 337,290.05

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Solution

The fourth proportional to 623,770.65, 860,802.89 and 337,290.05 is: 465,459.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,770.65 : 860,802.89 = 337,290.05 : x
  2. Step 2: Convert to fraction form
    623,770.65/860,802.89 = 337,290.05/x
  3. Step 3: Cross multiply
    623,770.65x = 860,802.89 × 337,290.05
  4. Step 4: Simplify right side
    623,770.65x = 290,340,250,273.80
  5. Step 5: Solve for x
    x = 290,340,250,273.80/623,770.65
  6. Step 6: Final answer
    x = 465,459.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.