Home / 1,211,501.06-1,817,185.80-369,987.20

Finding the Fourth Proportional to 1,211,501.06, 1,817,185.80 and 369,987.20

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Solution

The fourth proportional to 1,211,501.06, 1,817,185.80 and 369,987.20 is: 554,960.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,501.06 : 1,817,185.80 = 369,987.20 : x
  2. Step 2: Convert to fraction form
    1,211,501.06/1,817,185.80 = 369,987.20/x
  3. Step 3: Cross multiply
    1,211,501.06x = 1,817,185.80 × 369,987.20
  4. Step 4: Simplify right side
    1,211,501.06x = 672,335,486,021.76
  5. Step 5: Solve for x
    x = 672,335,486,021.76/1,211,501.06
  6. Step 6: Final answer
    x = 554,960.71

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.