Home / 745,803.80-1,118,705.70-325,899.80

Finding the Fourth Proportional to 745,803.80, 1,118,705.70 and 325,899.80

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Solution

The fourth proportional to 745,803.80, 1,118,705.70 and 325,899.80 is: 488,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,803.80 : 1,118,705.70 = 325,899.80 : x
  2. Step 2: Convert to fraction form
    745,803.80/1,118,705.70 = 325,899.80/x
  3. Step 3: Cross multiply
    745,803.80x = 1,118,705.70 × 325,899.80
  4. Step 4: Simplify right side
    745,803.80x = 364,585,963,888.86
  5. Step 5: Solve for x
    x = 364,585,963,888.86/745,803.80
  6. Step 6: Final answer
    x = 488,849.70

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Double scale
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Similar ratio
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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.