Home / 761,743.40-1,142,690.88-282,099.56

Finding the Fourth Proportional to 761,743.40, 1,142,690.88 and 282,099.56

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Solution

The fourth proportional to 761,743.40, 1,142,690.88 and 282,099.56 is: 423,177.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,743.40 : 1,142,690.88 = 282,099.56 : x
  2. Step 2: Convert to fraction form
    761,743.40/1,142,690.88 = 282,099.56/x
  3. Step 3: Cross multiply
    761,743.40x = 1,142,690.88 × 282,099.56
  4. Step 4: Simplify right side
    761,743.40x = 322,352,594,464.01
  5. Step 5: Solve for x
    x = 322,352,594,464.01/761,743.40
  6. Step 6: Final answer
    x = 423,177.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.