Home / 875,266.40-1,312,381.20-455,362.40

Finding the Fourth Proportional to 875,266.40, 1,312,381.20 and 455,362.40

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Solution

The fourth proportional to 875,266.40, 1,312,381.20 and 455,362.40 is: 682,773.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,266.40 : 1,312,381.20 = 455,362.40 : x
  2. Step 2: Convert to fraction form
    875,266.40/1,312,381.20 = 455,362.40/x
  3. Step 3: Cross multiply
    875,266.40x = 1,312,381.20 × 455,362.40
  4. Step 4: Simplify right side
    875,266.40x = 597,609,052,946.88
  5. Step 5: Solve for x
    x = 597,609,052,946.88/875,266.40
  6. Step 6: Final answer
    x = 682,773.90

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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.