Home / 779,912.40-1,169,868.60-218,946.90

Finding the Fourth Proportional to 779,912.40, 1,169,868.60 and 218,946.90

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Solution

The fourth proportional to 779,912.40, 1,169,868.60 and 218,946.90 is: 328,420.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,912.40 : 1,169,868.60 = 218,946.90 : x
  2. Step 2: Convert to fraction form
    779,912.40/1,169,868.60 = 218,946.90/x
  3. Step 3: Cross multiply
    779,912.40x = 1,169,868.60 × 218,946.90
  4. Step 4: Simplify right side
    779,912.40x = 256,139,103,377.34
  5. Step 5: Solve for x
    x = 256,139,103,377.34/779,912.40
  6. Step 6: Final answer
    x = 328,420.35

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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.