Home / 1,210,054.80-1,812,457.80-1,000,102.80

Finding the Fourth Proportional to 1,210,054.80, 1,812,457.80 and 1,000,102.80

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Solution

The fourth proportional to 1,210,054.80, 1,812,457.80 and 1,000,102.80 is: 1,497,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,054.80 : 1,812,457.80 = 1,000,102.80 : x
  2. Step 2: Convert to fraction form
    1,210,054.80/1,812,457.80 = 1,000,102.80/x
  3. Step 3: Cross multiply
    1,210,054.80x = 1,812,457.80 × 1,000,102.80
  4. Step 4: Simplify right side
    1,210,054.80x = 1,812,644,120,661.84
  5. Step 5: Solve for x
    x = 1,812,644,120,661.84/1,210,054.80
  6. Step 6: Final answer
    x = 1,497,985.15

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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.