Home / 675,430.40-1,013,145.60-670,764.80

Finding the Fourth Proportional to 675,430.40, 1,013,145.60 and 670,764.80

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Solution

The fourth proportional to 675,430.40, 1,013,145.60 and 670,764.80 is: 1,006,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,430.40 : 1,013,145.60 = 670,764.80 : x
  2. Step 2: Convert to fraction form
    675,430.40/1,013,145.60 = 670,764.80/x
  3. Step 3: Cross multiply
    675,430.40x = 1,013,145.60 × 670,764.80
  4. Step 4: Simplify right side
    675,430.40x = 679,582,405,754.88
  5. Step 5: Solve for x
    x = 679,582,405,754.88/675,430.40
  6. Step 6: Final answer
    x = 1,006,147.20

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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.