Home / 1,210,773.12-1,670,878.44-666,911.22

Finding the Fourth Proportional to 1,210,773.12, 1,670,878.44 and 666,911.22

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Solution

The fourth proportional to 1,210,773.12, 1,670,878.44 and 666,911.22 is: 920,343.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,773.12 : 1,670,878.44 = 666,911.22 : x
  2. Step 2: Convert to fraction form
    1,210,773.12/1,670,878.44 = 666,911.22/x
  3. Step 3: Cross multiply
    1,210,773.12x = 1,670,878.44 × 666,911.22
  4. Step 4: Simplify right side
    1,210,773.12x = 1,114,327,578,892.10
  5. Step 5: Solve for x
    x = 1,114,327,578,892.10/1,210,773.12
  6. Step 6: Final answer
    x = 920,343.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.