Home / 1,432,674.45-1,977,095.40-788,143.68

Finding the Fourth Proportional to 1,432,674.45, 1,977,095.40 and 788,143.68

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Solution

The fourth proportional to 1,432,674.45, 1,977,095.40 and 788,143.68 is: 1,087,640.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,674.45 : 1,977,095.40 = 788,143.68 : x
  2. Step 2: Convert to fraction form
    1,432,674.45/1,977,095.40 = 788,143.68/x
  3. Step 3: Cross multiply
    1,432,674.45x = 1,977,095.40 × 788,143.68
  4. Step 4: Simplify right side
    1,432,674.45x = 1,558,235,230,440.88
  5. Step 5: Solve for x
    x = 1,558,235,230,440.88/1,432,674.45
  6. Step 6: Final answer
    x = 1,087,640.84

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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.