Home / 1,954,272.80-2,931,409.20-1,316,543.60

Finding the Fourth Proportional to 1,954,272.80, 2,931,409.20 and 1,316,543.60

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Solution

The fourth proportional to 1,954,272.80, 2,931,409.20 and 1,316,543.60 is: 1,974,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954,272.80 : 2,931,409.20 = 1,316,543.60 : x
  2. Step 2: Convert to fraction form
    1,954,272.80/2,931,409.20 = 1,316,543.60/x
  3. Step 3: Cross multiply
    1,954,272.80x = 2,931,409.20 × 1,316,543.60
  4. Step 4: Simplify right side
    1,954,272.80x = 3,859,328,021,241.12
  5. Step 5: Solve for x
    x = 3,859,328,021,241.12/1,954,272.80
  6. Step 6: Final answer
    x = 1,974,815.40

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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.