Home / 679,843.20-1,019,764.80-637,852.80

Finding the Fourth Proportional to 679,843.20, 1,019,764.80 and 637,852.80

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Solution

The fourth proportional to 679,843.20, 1,019,764.80 and 637,852.80 is: 956,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,843.20 : 1,019,764.80 = 637,852.80 : x
  2. Step 2: Convert to fraction form
    679,843.20/1,019,764.80 = 637,852.80/x
  3. Step 3: Cross multiply
    679,843.20x = 1,019,764.80 × 637,852.80
  4. Step 4: Simplify right side
    679,843.20x = 650,459,833,021.44
  5. Step 5: Solve for x
    x = 650,459,833,021.44/679,843.20
  6. Step 6: Final answer
    x = 956,779.20

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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.