Home / 679,345.20-1,019,017.80-668,847.60

Finding the Fourth Proportional to 679,345.20, 1,019,017.80 and 668,847.60

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Solution

The fourth proportional to 679,345.20, 1,019,017.80 and 668,847.60 is: 1,003,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,345.20 : 1,019,017.80 = 668,847.60 : x
  2. Step 2: Convert to fraction form
    679,345.20/1,019,017.80 = 668,847.60/x
  3. Step 3: Cross multiply
    679,345.20x = 1,019,017.80 × 668,847.60
  4. Step 4: Simplify right side
    679,345.20x = 681,567,609,887.28
  5. Step 5: Solve for x
    x = 681,567,609,887.28/679,345.20
  6. Step 6: Final answer
    x = 1,003,271.40

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1.5x scale

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.