Home / 750,683.90-1,036,018.26-428,442.81

Finding the Fourth Proportional to 750,683.90, 1,036,018.26 and 428,442.81

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Solution

The fourth proportional to 750,683.90, 1,036,018.26 and 428,442.81 is: 591,293.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,683.90 : 1,036,018.26 = 428,442.81 : x
  2. Step 2: Convert to fraction form
    750,683.90/1,036,018.26 = 428,442.81/x
  3. Step 3: Cross multiply
    750,683.90x = 1,036,018.26 × 428,442.81
  4. Step 4: Simplify right side
    750,683.90x = 443,874,574,525.71
  5. Step 5: Solve for x
    x = 443,874,574,525.71/750,683.90
  6. Step 6: Final answer
    x = 591,293.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.