Home / 1,210,798.62-1,670,913.63-666,936.81

Finding the Fourth Proportional to 1,210,798.62, 1,670,913.63 and 666,936.81

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Solution

The fourth proportional to 1,210,798.62, 1,670,913.63 and 666,936.81 is: 920,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,798.62 : 1,670,913.63 = 666,936.81 : x
  2. Step 2: Convert to fraction form
    1,210,798.62/1,670,913.63 = 666,936.81/x
  3. Step 3: Cross multiply
    1,210,798.62x = 1,670,913.63 × 666,936.81
  4. Step 4: Simplify right side
    1,210,798.62x = 1,114,393,806,177.72
  5. Step 5: Solve for x
    x = 1,114,393,806,177.72/1,210,798.62
  6. Step 6: Final answer
    x = 920,379.15

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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.