Home / 1,432,890-1,977,388.16-788,296.32

Finding the Fourth Proportional to 1,432,890, 1,977,388.16 and 788,296.32

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Solution

The fourth proportional to 1,432,890, 1,977,388.16 and 788,296.32 is: 1,087,848.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,890 : 1,977,388.16 = 788,296.32 : x
  2. Step 2: Convert to fraction form
    1,432,890/1,977,388.16 = 788,296.32/x
  3. Step 3: Cross multiply
    1,432,890x = 1,977,388.16 × 788,296.32
  4. Step 4: Simplify right side
    1,432,890x = 1,558,767,809,739.57
  5. Step 5: Solve for x
    x = 1,558,767,809,739.57/1,432,890
  6. Step 6: Final answer
    x = 1,087,848.90

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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.