Home / 1,210,776.12-1,670,882.58-666,914.31

Finding the Fourth Proportional to 1,210,776.12, 1,670,882.58 and 666,914.31

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Solution

The fourth proportional to 1,210,776.12, 1,670,882.58 and 666,914.31 is: 920,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,776.12 : 1,670,882.58 = 666,914.31 : x
  2. Step 2: Convert to fraction form
    1,210,776.12/1,670,882.58 = 666,914.31/x
  3. Step 3: Cross multiply
    1,210,776.12x = 1,670,882.58 × 666,914.31
  4. Step 4: Simplify right side
    1,210,776.12x = 1,114,335,502,931.72
  5. Step 5: Solve for x
    x = 1,114,335,502,931.72/1,210,776.12
  6. Step 6: Final answer
    x = 920,348.10

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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.