Home / 761,905.92-1,051,431.65-422,374.17

Finding the Fourth Proportional to 761,905.92, 1,051,431.65 and 422,374.17

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Solution

The fourth proportional to 761,905.92, 1,051,431.65 and 422,374.17 is: 582,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,905.92 : 1,051,431.65 = 422,374.17 : x
  2. Step 2: Convert to fraction form
    761,905.92/1,051,431.65 = 422,374.17/x
  3. Step 3: Cross multiply
    761,905.92x = 1,051,431.65 × 422,374.17
  4. Step 4: Simplify right side
    761,905.92x = 444,097,570,480.48
  5. Step 5: Solve for x
    x = 444,097,570,480.48/761,905.92
  6. Step 6: Final answer
    x = 582,877.18

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1.5x scale

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.