Home / 921,866.40-1,382,799.64-290,829.44

Finding the Fourth Proportional to 921,866.40, 1,382,799.64 and 290,829.44

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Solution

The fourth proportional to 921,866.40, 1,382,799.64 and 290,829.44 is: 436,244.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,866.40 : 1,382,799.64 = 290,829.44 : x
  2. Step 2: Convert to fraction form
    921,866.40/1,382,799.64 = 290,829.44/x
  3. Step 3: Cross multiply
    921,866.40x = 1,382,799.64 × 290,829.44
  4. Step 4: Simplify right side
    921,866.40x = 402,158,844,933.40
  5. Step 5: Solve for x
    x = 402,158,844,933.40/921,866.40
  6. Step 6: Final answer
    x = 436,244.17

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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.