Home / 782,243.96-1,079,407.34-438,032.04

Finding the Fourth Proportional to 782,243.96, 1,079,407.34 and 438,032.04

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Solution

The fourth proportional to 782,243.96, 1,079,407.34 and 438,032.04 is: 604,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,243.96 : 1,079,407.34 = 438,032.04 : x
  2. Step 2: Convert to fraction form
    782,243.96/1,079,407.34 = 438,032.04/x
  3. Step 3: Cross multiply
    782,243.96x = 1,079,407.34 × 438,032.04
  4. Step 4: Simplify right side
    782,243.96x = 472,814,999,131.17
  5. Step 5: Solve for x
    x = 472,814,999,131.17/782,243.96
  6. Step 6: Final answer
    x = 604,434.20

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1.5x scale

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.