Home / 776,811.12-1,071,385.56-508,487.28

Finding the Fourth Proportional to 776,811.12, 1,071,385.56 and 508,487.28

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Solution

The fourth proportional to 776,811.12, 1,071,385.56 and 508,487.28 is: 701,310.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,811.12 : 1,071,385.56 = 508,487.28 : x
  2. Step 2: Convert to fraction form
    776,811.12/1,071,385.56 = 508,487.28/x
  3. Step 3: Cross multiply
    776,811.12x = 1,071,385.56 × 508,487.28
  4. Step 4: Simplify right side
    776,811.12x = 544,785,929,235.68
  5. Step 5: Solve for x
    x = 544,785,929,235.68/776,811.12
  6. Step 6: Final answer
    x = 701,310.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.