Home / 761,664.40-1,051,094.70-422,132.68

Finding the Fourth Proportional to 761,664.40, 1,051,094.70 and 422,132.68

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Solution

The fourth proportional to 761,664.40, 1,051,094.70 and 422,132.68 is: 582,541.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,664.40 : 1,051,094.70 = 422,132.68 : x
  2. Step 2: Convert to fraction form
    761,664.40/1,051,094.70 = 422,132.68/x
  3. Step 3: Cross multiply
    761,664.40x = 1,051,094.70 × 422,132.68
  4. Step 4: Simplify right side
    761,664.40x = 443,701,422,644.80
  5. Step 5: Solve for x
    x = 443,701,422,644.80/761,664.40
  6. Step 6: Final answer
    x = 582,541.89

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Double scale
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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.