Home / 726,729.40-1,090,482.90-306,047.80

Finding the Fourth Proportional to 726,729.40, 1,090,482.90 and 306,047.80

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Solution

The fourth proportional to 726,729.40, 1,090,482.90 and 306,047.80 is: 459,235.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,729.40 : 1,090,482.90 = 306,047.80 : x
  2. Step 2: Convert to fraction form
    726,729.40/1,090,482.90 = 306,047.80/x
  3. Step 3: Cross multiply
    726,729.40x = 1,090,482.90 × 306,047.80
  4. Step 4: Simplify right side
    726,729.40x = 333,739,892,482.62
  5. Step 5: Solve for x
    x = 333,739,892,482.62/726,729.40
  6. Step 6: Final answer
    x = 459,235.44

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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.