Home / 679,829.20-1,019,743.80-637,838.80

Finding the Fourth Proportional to 679,829.20, 1,019,743.80 and 637,838.80

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Solution

The fourth proportional to 679,829.20, 1,019,743.80 and 637,838.80 is: 956,758.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,829.20 : 1,019,743.80 = 637,838.80 : x
  2. Step 2: Convert to fraction form
    679,829.20/1,019,743.80 = 637,838.80/x
  3. Step 3: Cross multiply
    679,829.20x = 1,019,743.80 × 637,838.80
  4. Step 4: Simplify right side
    679,829.20x = 650,432,161,699.44
  5. Step 5: Solve for x
    x = 650,432,161,699.44/679,829.20
  6. Step 6: Final answer
    x = 956,758.20

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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.