Home / 1,646,741.89-2,272,454.89-911,728.86

Finding the Fourth Proportional to 1,646,741.89, 2,272,454.89 and 911,728.86

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Solution

The fourth proportional to 1,646,741.89, 2,272,454.89 and 911,728.86 is: 1,258,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646,741.89 : 2,272,454.89 = 911,728.86 : x
  2. Step 2: Convert to fraction form
    1,646,741.89/2,272,454.89 = 911,728.86/x
  3. Step 3: Cross multiply
    1,646,741.89x = 2,272,454.89 × 911,728.86
  4. Step 4: Simplify right side
    1,646,741.89x = 2,071,862,706,261.13
  5. Step 5: Solve for x
    x = 2,071,862,706,261.13/1,646,741.89
  6. Step 6: Final answer
    x = 1,258,158.74

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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.