Home / 875,170.40-1,312,755.60-210,322.40

Finding the Fourth Proportional to 875,170.40, 1,312,755.60 and 210,322.40

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Solution

The fourth proportional to 875,170.40, 1,312,755.60 and 210,322.40 is: 315,483.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,170.40 : 1,312,755.60 = 210,322.40 : x
  2. Step 2: Convert to fraction form
    875,170.40/1,312,755.60 = 210,322.40/x
  3. Step 3: Cross multiply
    875,170.40x = 1,312,755.60 × 210,322.40
  4. Step 4: Simplify right side
    875,170.40x = 276,101,908,405.44
  5. Step 5: Solve for x
    x = 276,101,908,405.44/875,170.40
  6. Step 6: Final answer
    x = 315,483.60

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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.