Home / 1,293,117.50-1,784,557.51-720,157.67

Finding the Fourth Proportional to 1,293,117.50, 1,784,557.51 and 720,157.67

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Solution

The fourth proportional to 1,293,117.50, 1,784,557.51 and 720,157.67 is: 993,848.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,117.50 : 1,784,557.51 = 720,157.67 : x
  2. Step 2: Convert to fraction form
    1,293,117.50/1,784,557.51 = 720,157.67/x
  3. Step 3: Cross multiply
    1,293,117.50x = 1,784,557.51 × 720,157.67
  4. Step 4: Simplify right side
    1,293,117.50x = 1,285,162,774,351.51
  5. Step 5: Solve for x
    x = 1,285,162,774,351.51/1,293,117.50
  6. Step 6: Final answer
    x = 993,848.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.