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Finding the Fourth Proportional to 574,242.90, 860,402.07 and 405,483.05

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Solution

The fourth proportional to 574,242.90, 860,402.07 and 405,483.05 is: 607,545.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,242.90 : 860,402.07 = 405,483.05 : x
  2. Step 2: Convert to fraction form
    574,242.90/860,402.07 = 405,483.05/x
  3. Step 3: Cross multiply
    574,242.90x = 860,402.07 × 405,483.05
  4. Step 4: Simplify right side
    574,242.90x = 348,878,451,267.90
  5. Step 5: Solve for x
    x = 348,878,451,267.90/574,242.90
  6. Step 6: Final answer
    x = 607,545.08

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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.