Home / 778,047.29-1,166,790.08-328,802.87

Finding the Fourth Proportional to 778,047.29, 1,166,790.08 and 328,802.87

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Solution

The fourth proportional to 778,047.29, 1,166,790.08 and 328,802.87 is: 493,085.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,047.29 : 1,166,790.08 = 328,802.87 : x
  2. Step 2: Convert to fraction form
    778,047.29/1,166,790.08 = 328,802.87/x
  3. Step 3: Cross multiply
    778,047.29x = 1,166,790.08 × 328,802.87
  4. Step 4: Simplify right side
    778,047.29x = 383,643,919,513.57
  5. Step 5: Solve for x
    x = 383,643,919,513.57/778,047.29
  6. Step 6: Final answer
    x = 493,085.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.