Home / 1,406,786.88-1,940,294.70-1,210,886.76

Finding the Fourth Proportional to 1,406,786.88, 1,940,294.70 and 1,210,886.76

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Solution

The fourth proportional to 1,406,786.88, 1,940,294.70 and 1,210,886.76 is: 1,670,101.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406,786.88 : 1,940,294.70 = 1,210,886.76 : x
  2. Step 2: Convert to fraction form
    1,406,786.88/1,940,294.70 = 1,210,886.76/x
  3. Step 3: Cross multiply
    1,406,786.88x = 1,940,294.70 × 1,210,886.76
  4. Step 4: Simplify right side
    1,406,786.88x = 2,349,477,162,728.17
  5. Step 5: Solve for x
    x = 2,349,477,162,728.17/1,406,786.88
  6. Step 6: Final answer
    x = 1,670,101.70

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1.5x scale

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.