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Finding the Fourth Proportional to 610,427.10, 915,640.65 and 510,699.90

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Solution

The fourth proportional to 610,427.10, 915,640.65 and 510,699.90 is: 766,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,427.10 : 915,640.65 = 510,699.90 : x
  2. Step 2: Convert to fraction form
    610,427.10/915,640.65 = 510,699.90/x
  3. Step 3: Cross multiply
    610,427.10x = 915,640.65 × 510,699.90
  4. Step 4: Simplify right side
    610,427.10x = 467,617,588,390.94
  5. Step 5: Solve for x
    x = 467,617,588,390.94/610,427.10
  6. Step 6: Final answer
    x = 766,049.85

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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.