Home / 786,051.40-1,179,306.78-253,560.68

Finding the Fourth Proportional to 786,051.40, 1,179,306.78 and 253,560.68

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Solution

The fourth proportional to 786,051.40, 1,179,306.78 and 253,560.68 is: 380,415.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,051.40 : 1,179,306.78 = 253,560.68 : x
  2. Step 2: Convert to fraction form
    786,051.40/1,179,306.78 = 253,560.68/x
  3. Step 3: Cross multiply
    786,051.40x = 1,179,306.78 × 253,560.68
  4. Step 4: Simplify right side
    786,051.40x = 299,025,829,065.41
  5. Step 5: Solve for x
    x = 299,025,829,065.41/786,051.40
  6. Step 6: Final answer
    x = 380,415.11

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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.