Home / 761,665.40-1,051,096.08-422,133.68

Finding the Fourth Proportional to 761,665.40, 1,051,096.08 and 422,133.68

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Solution

The fourth proportional to 761,665.40, 1,051,096.08 and 422,133.68 is: 582,543.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,665.40 : 1,051,096.08 = 422,133.68 : x
  2. Step 2: Convert to fraction form
    761,665.40/1,051,096.08 = 422,133.68/x
  3. Step 3: Cross multiply
    761,665.40x = 1,051,096.08 × 422,133.68
  4. Step 4: Simplify right side
    761,665.40x = 443,703,056,283.97
  5. Step 5: Solve for x
    x = 443,703,056,283.97/761,665.40
  6. Step 6: Final answer
    x = 582,543.27

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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.