Home / 889,145.51-1,333,857.18-289,967.32

Finding the Fourth Proportional to 889,145.51, 1,333,857.18 and 289,967.32

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Solution

The fourth proportional to 889,145.51, 1,333,857.18 and 289,967.32 is: 434,996.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,145.51 : 1,333,857.18 = 289,967.32 : x
  2. Step 2: Convert to fraction form
    889,145.51/1,333,857.18 = 289,967.32/x
  3. Step 3: Cross multiply
    889,145.51x = 1,333,857.18 × 289,967.32
  4. Step 4: Simplify right side
    889,145.51x = 386,774,989,935.05
  5. Step 5: Solve for x
    x = 386,774,989,935.05/889,145.51
  6. Step 6: Final answer
    x = 434,996.28

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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.