Home / 1,490,036.40-2,056,189.46-845,442.72

Finding the Fourth Proportional to 1,490,036.40, 2,056,189.46 and 845,442.72

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Solution

The fourth proportional to 1,490,036.40, 2,056,189.46 and 845,442.72 is: 1,166,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,036.40 : 2,056,189.46 = 845,442.72 : x
  2. Step 2: Convert to fraction form
    1,490,036.40/2,056,189.46 = 845,442.72/x
  3. Step 3: Cross multiply
    1,490,036.40x = 2,056,189.46 × 845,442.72
  4. Step 4: Simplify right side
    1,490,036.40x = 1,738,390,405,670.52
  5. Step 5: Solve for x
    x = 1,738,390,405,670.52/1,490,036.40
  6. Step 6: Final answer
    x = 1,166,676.47

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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.