Home / 3,119,689.04-4,679,699.76-989,939.84

Finding the Fourth Proportional to 3,119,689.04, 4,679,699.76 and 989,939.84

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Solution

The fourth proportional to 3,119,689.04, 4,679,699.76 and 989,939.84 is: 1,484,962.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,689.04 : 4,679,699.76 = 989,939.84 : x
  2. Step 2: Convert to fraction form
    3,119,689.04/4,679,699.76 = 989,939.84/x
  3. Step 3: Cross multiply
    3,119,689.04x = 4,679,699.76 × 989,939.84
  4. Step 4: Simplify right side
    3,119,689.04x = 4,632,621,231,662.44
  5. Step 5: Solve for x
    x = 4,632,621,231,662.44/3,119,689.04
  6. Step 6: Final answer
    x = 1,484,962.50

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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.