Home / 1,210,655.24-1,670,715.84-666,803.36

Finding the Fourth Proportional to 1,210,655.24, 1,670,715.84 and 666,803.36

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Solution

The fourth proportional to 1,210,655.24, 1,670,715.84 and 666,803.36 is: 920,195.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,655.24 : 1,670,715.84 = 666,803.36 : x
  2. Step 2: Convert to fraction form
    1,210,655.24/1,670,715.84 = 666,803.36/x
  3. Step 3: Cross multiply
    1,210,655.24x = 1,670,715.84 × 666,803.36
  4. Step 4: Simplify right side
    1,210,655.24x = 1,114,038,935,717.22
  5. Step 5: Solve for x
    x = 1,114,038,935,717.22/1,210,655.24
  6. Step 6: Final answer
    x = 920,195.03

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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.