Home / 841,280-1,261,922.70-210,193.88

Finding the Fourth Proportional to 841,280, 1,261,922.70 and 210,193.88

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Solution

The fourth proportional to 841,280, 1,261,922.70 and 210,193.88 is: 315,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,280 : 1,261,922.70 = 210,193.88 : x
  2. Step 2: Convert to fraction form
    841,280/1,261,922.70 = 210,193.88/x
  3. Step 3: Cross multiply
    841,280x = 1,261,922.70 × 210,193.88
  4. Step 4: Simplify right side
    841,280x = 265,248,428,573.08
  5. Step 5: Solve for x
    x = 265,248,428,573.08/841,280
  6. Step 6: Final answer
    x = 315,291.49

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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.