Home / 1,111,102.74-1,666,752.55-312,391.23

Finding the Fourth Proportional to 1,111,102.74, 1,666,752.55 and 312,391.23

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Solution

The fourth proportional to 1,111,102.74, 1,666,752.55 and 312,391.23 is: 468,614.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,102.74 : 1,666,752.55 = 312,391.23 : x
  2. Step 2: Convert to fraction form
    1,111,102.74/1,666,752.55 = 312,391.23/x
  3. Step 3: Cross multiply
    1,111,102.74x = 1,666,752.55 × 312,391.23
  4. Step 4: Simplify right side
    1,111,102.74x = 520,678,879,200.14
  5. Step 5: Solve for x
    x = 520,678,879,200.14/1,111,102.74
  6. Step 6: Final answer
    x = 468,614.52

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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.