Home / 679,969.70-1,019,954.55-637,979.30

Finding the Fourth Proportional to 679,969.70, 1,019,954.55 and 637,979.30

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Solution

The fourth proportional to 679,969.70, 1,019,954.55 and 637,979.30 is: 956,968.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,969.70 : 1,019,954.55 = 637,979.30 : x
  2. Step 2: Convert to fraction form
    679,969.70/1,019,954.55 = 637,979.30/x
  3. Step 3: Cross multiply
    679,969.70x = 1,019,954.55 × 637,979.30
  4. Step 4: Simplify right side
    679,969.70x = 650,709,889,840.82
  5. Step 5: Solve for x
    x = 650,709,889,840.82/679,969.70
  6. Step 6: Final answer
    x = 956,968.95

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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.