Home / 1,663,275.24-2,295,308.70-938,128.86

Finding the Fourth Proportional to 1,663,275.24, 2,295,308.70 and 938,128.86

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Solution

The fourth proportional to 1,663,275.24, 2,295,308.70 and 938,128.86 is: 1,294,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,275.24 : 2,295,308.70 = 938,128.86 : x
  2. Step 2: Convert to fraction form
    1,663,275.24/2,295,308.70 = 938,128.86/x
  3. Step 3: Cross multiply
    1,663,275.24x = 2,295,308.70 × 938,128.86
  4. Step 4: Simplify right side
    1,663,275.24x = 2,153,295,334,079.08
  5. Step 5: Solve for x
    x = 2,153,295,334,079.08/1,663,275.24
  6. Step 6: Final answer
    x = 1,294,611.55

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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.