Home / 991,810.80-1,487,716.20-949,820.40

Finding the Fourth Proportional to 991,810.80, 1,487,716.20 and 949,820.40

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Solution

The fourth proportional to 991,810.80, 1,487,716.20 and 949,820.40 is: 1,424,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,810.80 : 1,487,716.20 = 949,820.40 : x
  2. Step 2: Convert to fraction form
    991,810.80/1,487,716.20 = 949,820.40/x
  3. Step 3: Cross multiply
    991,810.80x = 1,487,716.20 × 949,820.40
  4. Step 4: Simplify right side
    991,810.80x = 1,413,063,196,170.48
  5. Step 5: Solve for x
    x = 1,413,063,196,170.48/991,810.80
  6. Step 6: Final answer
    x = 1,424,730.60

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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.