Home / 779,830.80-1,169,746.20-218,865.30

Finding the Fourth Proportional to 779,830.80, 1,169,746.20 and 218,865.30

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Solution

The fourth proportional to 779,830.80, 1,169,746.20 and 218,865.30 is: 328,297.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,830.80 : 1,169,746.20 = 218,865.30 : x
  2. Step 2: Convert to fraction form
    779,830.80/1,169,746.20 = 218,865.30/x
  3. Step 3: Cross multiply
    779,830.80x = 1,169,746.20 × 218,865.30
  4. Step 4: Simplify right side
    779,830.80x = 256,016,852,986.86
  5. Step 5: Solve for x
    x = 256,016,852,986.86/779,830.80
  6. Step 6: Final answer
    x = 328,297.95

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1.5x scale

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.