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Finding the Fourth Proportional to 510,341.95, 763,640.67 and 425,893.64

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Solution

The fourth proportional to 510,341.95, 763,640.67 and 425,893.64 is: 637,278.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,341.95 : 763,640.67 = 425,893.64 : x
  2. Step 2: Convert to fraction form
    510,341.95/763,640.67 = 425,893.64/x
  3. Step 3: Cross multiply
    510,341.95x = 763,640.67 × 425,893.64
  4. Step 4: Simplify right side
    510,341.95x = 325,229,704,598.34
  5. Step 5: Solve for x
    x = 325,229,704,598.34/510,341.95
  6. Step 6: Final answer
    x = 637,278.02

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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.