Home / 1,190,543.32-1,642,967.46-646,689.72

Finding the Fourth Proportional to 1,190,543.32, 1,642,967.46 and 646,689.72

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Solution

The fourth proportional to 1,190,543.32, 1,642,967.46 and 646,689.72 is: 892,441.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,543.32 : 1,642,967.46 = 646,689.72 : x
  2. Step 2: Convert to fraction form
    1,190,543.32/1,642,967.46 = 646,689.72/x
  3. Step 3: Cross multiply
    1,190,543.32x = 1,642,967.46 × 646,689.72
  4. Step 4: Simplify right side
    1,190,543.32x = 1,062,490,166,676.51
  5. Step 5: Solve for x
    x = 1,062,490,166,676.51/1,190,543.32
  6. Step 6: Final answer
    x = 892,441.42

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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.