Home / 1,112,412.32-1,668,621.18-313,698.06

Finding the Fourth Proportional to 1,112,412.32, 1,668,621.18 and 313,698.06

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Solution

The fourth proportional to 1,112,412.32, 1,668,621.18 and 313,698.06 is: 470,547.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,412.32 : 1,668,621.18 = 313,698.06 : x
  2. Step 2: Convert to fraction form
    1,112,412.32/1,668,621.18 = 313,698.06/x
  3. Step 3: Cross multiply
    1,112,412.32x = 1,668,621.18 × 313,698.06
  4. Step 4: Simplify right side
    1,112,412.32x = 523,443,227,040.91
  5. Step 5: Solve for x
    x = 523,443,227,040.91/1,112,412.32
  6. Step 6: Final answer
    x = 470,547.85

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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.