Home / 1,432,912.81-1,977,419.59-788,319.18

Finding the Fourth Proportional to 1,432,912.81, 1,977,419.59 and 788,319.18

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Solution

The fourth proportional to 1,432,912.81, 1,977,419.59 and 788,319.18 is: 1,087,880.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,912.81 : 1,977,419.59 = 788,319.18 : x
  2. Step 2: Convert to fraction form
    1,432,912.81/1,977,419.59 = 788,319.18/x
  3. Step 3: Cross multiply
    1,432,912.81x = 1,977,419.59 × 788,319.18
  4. Step 4: Simplify right side
    1,432,912.81x = 1,558,837,777,846.84
  5. Step 5: Solve for x
    x = 1,558,837,777,846.84/1,432,912.81
  6. Step 6: Final answer
    x = 1,087,880.41

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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.