Home / 913,380.30-1,370,070.45-876,638.70

Finding the Fourth Proportional to 913,380.30, 1,370,070.45 and 876,638.70

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Solution

The fourth proportional to 913,380.30, 1,370,070.45 and 876,638.70 is: 1,314,958.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,380.30 : 1,370,070.45 = 876,638.70 : x
  2. Step 2: Convert to fraction form
    913,380.30/1,370,070.45 = 876,638.70/x
  3. Step 3: Cross multiply
    913,380.30x = 1,370,070.45 × 876,638.70
  4. Step 4: Simplify right side
    913,380.30x = 1,201,056,778,196.41
  5. Step 5: Solve for x
    x = 1,201,056,778,196.41/913,380.30
  6. Step 6: Final answer
    x = 1,314,958.05

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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.