Home / 1,210,479.08-1,670,430.82-666,610.60

Finding the Fourth Proportional to 1,210,479.08, 1,670,430.82 and 666,610.60

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Solution

The fourth proportional to 1,210,479.08, 1,670,430.82 and 666,610.60 is: 919,905.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,479.08 : 1,670,430.82 = 666,610.60 : x
  2. Step 2: Convert to fraction form
    1,210,479.08/1,670,430.82 = 666,610.60/x
  3. Step 3: Cross multiply
    1,210,479.08x = 1,670,430.82 × 666,610.60
  4. Step 4: Simplify right side
    1,210,479.08x = 1,113,526,891,178.69
  5. Step 5: Solve for x
    x = 1,113,526,891,178.69/1,210,479.08
  6. Step 6: Final answer
    x = 919,905.94

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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.