Home / 679,987.30-1,019,980.95-606,504.10

Finding the Fourth Proportional to 679,987.30, 1,019,980.95 and 606,504.10

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Solution

The fourth proportional to 679,987.30, 1,019,980.95 and 606,504.10 is: 909,756.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,987.30 : 1,019,980.95 = 606,504.10 : x
  2. Step 2: Convert to fraction form
    679,987.30/1,019,980.95 = 606,504.10/x
  3. Step 3: Cross multiply
    679,987.30x = 1,019,980.95 × 606,504.10
  4. Step 4: Simplify right side
    679,987.30x = 618,622,628,096.90
  5. Step 5: Solve for x
    x = 618,622,628,096.90/679,987.30
  6. Step 6: Final answer
    x = 909,756.15

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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.