Home / 921,395.04-1,382,162.53-313,994.58

Finding the Fourth Proportional to 921,395.04, 1,382,162.53 and 313,994.58

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Solution

The fourth proportional to 921,395.04, 1,382,162.53 and 313,994.58 is: 471,015.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,395.04 : 1,382,162.53 = 313,994.58 : x
  2. Step 2: Convert to fraction form
    921,395.04/1,382,162.53 = 313,994.58/x
  3. Step 3: Cross multiply
    921,395.04x = 1,382,162.53 × 313,994.58
  4. Step 4: Simplify right side
    921,395.04x = 433,991,534,618.30
  5. Step 5: Solve for x
    x = 433,991,534,618.30/921,395.04
  6. Step 6: Final answer
    x = 471,015.71

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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.