Home / 1,021,116.33-1,531,476.86-389,880.09

Finding the Fourth Proportional to 1,021,116.33, 1,531,476.86 and 389,880.09

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Solution

The fourth proportional to 1,021,116.33, 1,531,476.86 and 389,880.09 is: 584,744.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,116.33 : 1,531,476.86 = 389,880.09 : x
  2. Step 2: Convert to fraction form
    1,021,116.33/1,531,476.86 = 389,880.09/x
  3. Step 3: Cross multiply
    1,021,116.33x = 1,531,476.86 × 389,880.09
  4. Step 4: Simplify right side
    1,021,116.33x = 597,092,334,060.32
  5. Step 5: Solve for x
    x = 597,092,334,060.32/1,021,116.33
  6. Step 6: Final answer
    x = 584,744.67

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Double scale
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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.