Home / 889,509.47-1,333,988.06-320,816.65

Finding the Fourth Proportional to 889,509.47, 1,333,988.06 and 320,816.65

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Solution

The fourth proportional to 889,509.47, 1,333,988.06 and 320,816.65 is: 481,125.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,509.47 : 1,333,988.06 = 320,816.65 : x
  2. Step 2: Convert to fraction form
    889,509.47/1,333,988.06 = 320,816.65/x
  3. Step 3: Cross multiply
    889,509.47x = 1,333,988.06 × 320,816.65
  4. Step 4: Simplify right side
    889,509.47x = 427,965,580,818.26
  5. Step 5: Solve for x
    x = 427,965,580,818.26/889,509.47
  6. Step 6: Final answer
    x = 481,125.38

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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.