Home / 785,596.91-1,178,912.13-430,860.05

Finding the Fourth Proportional to 785,596.91, 1,178,912.13 and 430,860.05

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Solution

The fourth proportional to 785,596.91, 1,178,912.13 and 430,860.05 is: 646,573.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,596.91 : 1,178,912.13 = 430,860.05 : x
  2. Step 2: Convert to fraction form
    785,596.91/1,178,912.13 = 430,860.05/x
  3. Step 3: Cross multiply
    785,596.91x = 1,178,912.13 × 430,860.05
  4. Step 4: Simplify right side
    785,596.91x = 507,946,131,228.55
  5. Step 5: Solve for x
    x = 507,946,131,228.55/785,596.91
  6. Step 6: Final answer
    x = 646,573.48

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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.