Home / 911,009.40-1,365,639.30-708,493.20

Finding the Fourth Proportional to 911,009.40, 1,365,639.30 and 708,493.20

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Solution

The fourth proportional to 911,009.40, 1,365,639.30 and 708,493.20 is: 1,062,059.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,009.40 : 1,365,639.30 = 708,493.20 : x
  2. Step 2: Convert to fraction form
    911,009.40/1,365,639.30 = 708,493.20/x
  3. Step 3: Cross multiply
    911,009.40x = 1,365,639.30 × 708,493.20
  4. Step 4: Simplify right side
    911,009.40x = 967,546,157,702.76
  5. Step 5: Solve for x
    x = 967,546,157,702.76/911,009.40
  6. Step 6: Final answer
    x = 1,062,059.47

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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.