Home / 742,775.18-1,112,345.69-670,889.57

Finding the Fourth Proportional to 742,775.18, 1,112,345.69 and 670,889.57

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Solution

The fourth proportional to 742,775.18, 1,112,345.69 and 670,889.57 is: 1,004,693.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,775.18 : 1,112,345.69 = 670,889.57 : x
  2. Step 2: Convert to fraction form
    742,775.18/1,112,345.69 = 670,889.57/x
  3. Step 3: Cross multiply
    742,775.18x = 1,112,345.69 × 670,889.57
  4. Step 4: Simplify right side
    742,775.18x = 746,261,112,739.28
  5. Step 5: Solve for x
    x = 746,261,112,739.28/742,775.18
  6. Step 6: Final answer
    x = 1,004,693.13

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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.