Home / 985,527.20-1,478,290.80-668,266.40

Finding the Fourth Proportional to 985,527.20, 1,478,290.80 and 668,266.40

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Solution

The fourth proportional to 985,527.20, 1,478,290.80 and 668,266.40 is: 1,002,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,527.20 : 1,478,290.80 = 668,266.40 : x
  2. Step 2: Convert to fraction form
    985,527.20/1,478,290.80 = 668,266.40/x
  3. Step 3: Cross multiply
    985,527.20x = 1,478,290.80 × 668,266.40
  4. Step 4: Simplify right side
    985,527.20x = 987,892,071,069.12
  5. Step 5: Solve for x
    x = 987,892,071,069.12/985,527.20
  6. Step 6: Final answer
    x = 1,002,399.60

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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.