Home / 790,782.50-1,091,285.04-428,206.38

Finding the Fourth Proportional to 790,782.50, 1,091,285.04 and 428,206.38

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Solution

The fourth proportional to 790,782.50, 1,091,285.04 and 428,206.38 is: 590,927.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,782.50 : 1,091,285.04 = 428,206.38 : x
  2. Step 2: Convert to fraction form
    790,782.50/1,091,285.04 = 428,206.38/x
  3. Step 3: Cross multiply
    790,782.50x = 1,091,285.04 × 428,206.38
  4. Step 4: Simplify right side
    790,782.50x = 467,295,216,526.56
  5. Step 5: Solve for x
    x = 467,295,216,526.56/790,782.50
  6. Step 6: Final answer
    x = 590,927.62

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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.