Home / 818,848.76-1,228,272.96-319,862.84

Finding the Fourth Proportional to 818,848.76, 1,228,272.96 and 319,862.84

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Solution

The fourth proportional to 818,848.76, 1,228,272.96 and 319,862.84 is: 479,794.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,848.76 : 1,228,272.96 = 319,862.84 : x
  2. Step 2: Convert to fraction form
    818,848.76/1,228,272.96 = 319,862.84/x
  3. Step 3: Cross multiply
    818,848.76x = 1,228,272.96 × 319,862.84
  4. Step 4: Simplify right side
    818,848.76x = 392,878,877,280.81
  5. Step 5: Solve for x
    x = 392,878,877,280.81/818,848.76
  6. Step 6: Final answer
    x = 479,794.19

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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.