Home / 830,872-1,246,428.60-262,060.84

Finding the Fourth Proportional to 830,872, 1,246,428.60 and 262,060.84

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Solution

The fourth proportional to 830,872, 1,246,428.60 and 262,060.84 is: 393,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,872 : 1,246,428.60 = 262,060.84 : x
  2. Step 2: Convert to fraction form
    830,872/1,246,428.60 = 262,060.84/x
  3. Step 3: Cross multiply
    830,872x = 1,246,428.60 × 262,060.84
  4. Step 4: Simplify right side
    830,872x = 326,640,125,916.02
  5. Step 5: Solve for x
    x = 326,640,125,916.02/830,872
  6. Step 6: Final answer
    x = 393,129.30

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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.