Home / 852,685.65-1,176,727.60-485,142.55

Finding the Fourth Proportional to 852,685.65, 1,176,727.60 and 485,142.55

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Solution

The fourth proportional to 852,685.65, 1,176,727.60 and 485,142.55 is: 669,508.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,685.65 : 1,176,727.60 = 485,142.55 : x
  2. Step 2: Convert to fraction form
    852,685.65/1,176,727.60 = 485,142.55/x
  3. Step 3: Cross multiply
    852,685.65x = 1,176,727.60 × 485,142.55
  4. Step 4: Simplify right side
    852,685.65x = 570,880,626,183.99
  5. Step 5: Solve for x
    x = 570,880,626,183.99/852,685.65
  6. Step 6: Final answer
    x = 669,508.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.