Home / 679,835.70-1,019,753.55-637,845.30

Finding the Fourth Proportional to 679,835.70, 1,019,753.55 and 637,845.30

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Solution

The fourth proportional to 679,835.70, 1,019,753.55 and 637,845.30 is: 956,767.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,835.70 : 1,019,753.55 = 637,845.30 : x
  2. Step 2: Convert to fraction form
    679,835.70/1,019,753.55 = 637,845.30/x
  3. Step 3: Cross multiply
    679,835.70x = 1,019,753.55 × 637,845.30
  4. Step 4: Simplify right side
    679,835.70x = 650,445,009,025.82
  5. Step 5: Solve for x
    x = 650,445,009,025.82/679,835.70
  6. Step 6: Final answer
    x = 956,767.95

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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.