Home / 778,130-1,073,901.95-456,110.65

Finding the Fourth Proportional to 778,130, 1,073,901.95 and 456,110.65

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Solution

The fourth proportional to 778,130, 1,073,901.95 and 456,110.65 is: 629,481.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,130 : 1,073,901.95 = 456,110.65 : x
  2. Step 2: Convert to fraction form
    778,130/1,073,901.95 = 456,110.65/x
  3. Step 3: Cross multiply
    778,130x = 1,073,901.95 × 456,110.65
  4. Step 4: Simplify right side
    778,130x = 489,818,116,450.77
  5. Step 5: Solve for x
    x = 489,818,116,450.77/778,130
  6. Step 6: Final answer
    x = 629,481.08

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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.