Home / 1,210,836.10-1,670,953.86-666,970.24

Finding the Fourth Proportional to 1,210,836.10, 1,670,953.86 and 666,970.24

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Solution

The fourth proportional to 1,210,836.10, 1,670,953.86 and 666,970.24 is: 920,418.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,836.10 : 1,670,953.86 = 666,970.24 : x
  2. Step 2: Convert to fraction form
    1,210,836.10/1,670,953.86 = 666,970.24/x
  3. Step 3: Cross multiply
    1,210,836.10x = 1,670,953.86 × 666,970.24
  4. Step 4: Simplify right side
    1,210,836.10x = 1,114,476,497,033.13
  5. Step 5: Solve for x
    x = 1,114,476,497,033.13/1,210,836.10
  6. Step 6: Final answer
    x = 920,418.95

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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.