Home / 912,002.80-1,368,004.20-576,079.60

Finding the Fourth Proportional to 912,002.80, 1,368,004.20 and 576,079.60

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Solution

The fourth proportional to 912,002.80, 1,368,004.20 and 576,079.60 is: 864,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,002.80 : 1,368,004.20 = 576,079.60 : x
  2. Step 2: Convert to fraction form
    912,002.80/1,368,004.20 = 576,079.60/x
  3. Step 3: Cross multiply
    912,002.80x = 1,368,004.20 × 576,079.60
  4. Step 4: Simplify right side
    912,002.80x = 788,079,312,334.32
  5. Step 5: Solve for x
    x = 788,079,312,334.32/912,002.80
  6. Step 6: Final answer
    x = 864,119.40

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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.