Home / 755,512.40-1,133,268.60-423,045.20

Finding the Fourth Proportional to 755,512.40, 1,133,268.60 and 423,045.20

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Solution

The fourth proportional to 755,512.40, 1,133,268.60 and 423,045.20 is: 634,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,512.40 : 1,133,268.60 = 423,045.20 : x
  2. Step 2: Convert to fraction form
    755,512.40/1,133,268.60 = 423,045.20/x
  3. Step 3: Cross multiply
    755,512.40x = 1,133,268.60 × 423,045.20
  4. Step 4: Simplify right side
    755,512.40x = 479,423,841,540.72
  5. Step 5: Solve for x
    x = 479,423,841,540.72/755,512.40
  6. Step 6: Final answer
    x = 634,567.80

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Similar ratio
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1.5x scale

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.