Home / 778,128.00-1,073,899.19-456,108.65

Finding the Fourth Proportional to 778,128.00, 1,073,899.19 and 456,108.65

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Solution

The fourth proportional to 778,128.00, 1,073,899.19 and 456,108.65 is: 629,478.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,128.00 : 1,073,899.19 = 456,108.65 : x
  2. Step 2: Convert to fraction form
    778,128.00/1,073,899.19 = 456,108.65/x
  3. Step 3: Cross multiply
    778,128.00x = 1,073,899.19 × 456,108.65
  4. Step 4: Simplify right side
    778,128.00x = 489,814,710,927.27
  5. Step 5: Solve for x
    x = 489,814,710,927.27/778,128.00
  6. Step 6: Final answer
    x = 629,478.33

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1.5x scale

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.