Home / 1,390,859.40-2,086,548.30-444,498.60

Finding the Fourth Proportional to 1,390,859.40, 2,086,548.30 and 444,498.60

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Solution

The fourth proportional to 1,390,859.40, 2,086,548.30 and 444,498.60 is: 666,830.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,859.40 : 2,086,548.30 = 444,498.60 : x
  2. Step 2: Convert to fraction form
    1,390,859.40/2,086,548.30 = 444,498.60/x
  3. Step 3: Cross multiply
    1,390,859.40x = 2,086,548.30 × 444,498.60
  4. Step 4: Simplify right side
    1,390,859.40x = 927,467,798,182.38
  5. Step 5: Solve for x
    x = 927,467,798,182.38/1,390,859.40
  6. Step 6: Final answer
    x = 666,830.74

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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.