Home / 580,272.40-869,947.80-317,616.40

Finding the Fourth Proportional to 580,272.40, 869,947.80 and 317,616.40

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Solution

The fourth proportional to 580,272.40, 869,947.80 and 317,616.40 is: 476,172.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,272.40 : 869,947.80 = 317,616.40 : x
  2. Step 2: Convert to fraction form
    580,272.40/869,947.80 = 317,616.40/x
  3. Step 3: Cross multiply
    580,272.40x = 869,947.80 × 317,616.40
  4. Step 4: Simplify right side
    580,272.40x = 276,309,688,423.92
  5. Step 5: Solve for x
    x = 276,309,688,423.92/580,272.40
  6. Step 6: Final answer
    x = 476,172.38

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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.