Home / 1,189,889.48-1,642,038.40-646,014.48

Finding the Fourth Proportional to 1,189,889.48, 1,642,038.40 and 646,014.48

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Solution

The fourth proportional to 1,189,889.48, 1,642,038.40 and 646,014.48 is: 891,495.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,889.48 : 1,642,038.40 = 646,014.48 : x
  2. Step 2: Convert to fraction form
    1,189,889.48/1,642,038.40 = 646,014.48/x
  3. Step 3: Cross multiply
    1,189,889.48x = 1,642,038.40 × 646,014.48
  4. Step 4: Simplify right side
    1,189,889.48x = 1,060,780,583,116.03
  5. Step 5: Solve for x
    x = 1,060,780,583,116.03/1,189,889.48
  6. Step 6: Final answer
    x = 891,495.05

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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.