Home / 723,842.40-1,085,245.20-302,901.60

Finding the Fourth Proportional to 723,842.40, 1,085,245.20 and 302,901.60

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Solution

The fourth proportional to 723,842.40, 1,085,245.20 and 302,901.60 is: 454,135.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,842.40 : 1,085,245.20 = 302,901.60 : x
  2. Step 2: Convert to fraction form
    723,842.40/1,085,245.20 = 302,901.60/x
  3. Step 3: Cross multiply
    723,842.40x = 1,085,245.20 × 302,901.60
  4. Step 4: Simplify right side
    723,842.40x = 328,722,507,472.32
  5. Step 5: Solve for x
    x = 328,722,507,472.32/723,842.40
  6. Step 6: Final answer
    x = 454,135.47

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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.