Home / 889,148.51-1,333,861.68-289,970.32

Finding the Fourth Proportional to 889,148.51, 1,333,861.68 and 289,970.32

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Solution

The fourth proportional to 889,148.51, 1,333,861.68 and 289,970.32 is: 435,000.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,148.51 : 1,333,861.68 = 289,970.32 : x
  2. Step 2: Convert to fraction form
    889,148.51/1,333,861.68 = 289,970.32/x
  3. Step 3: Cross multiply
    889,148.51x = 1,333,861.68 × 289,970.32
  4. Step 4: Simplify right side
    889,148.51x = 386,780,298,185.34
  5. Step 5: Solve for x
    x = 386,780,298,185.34/889,148.51
  6. Step 6: Final answer
    x = 435,000.78

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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.