Home / 693,143.64-1,039,270.52-288,616.08

Finding the Fourth Proportional to 693,143.64, 1,039,270.52 and 288,616.08

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Solution

The fourth proportional to 693,143.64, 1,039,270.52 and 288,616.08 is: 432,738.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,143.64 : 1,039,270.52 = 288,616.08 : x
  2. Step 2: Convert to fraction form
    693,143.64/1,039,270.52 = 288,616.08/x
  3. Step 3: Cross multiply
    693,143.64x = 1,039,270.52 × 288,616.08
  4. Step 4: Simplify right side
    693,143.64x = 299,950,183,541.96
  5. Step 5: Solve for x
    x = 299,950,183,541.96/693,143.64
  6. Step 6: Final answer
    x = 432,738.85

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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.