Home / 570,278.80-786,931.43-340,790.54

Finding the Fourth Proportional to 570,278.80, 786,931.43 and 340,790.54

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Solution

The fourth proportional to 570,278.80, 786,931.43 and 340,790.54 is: 470,259.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,278.80 : 786,931.43 = 340,790.54 : x
  2. Step 2: Convert to fraction form
    570,278.80/786,931.43 = 340,790.54/x
  3. Step 3: Cross multiply
    570,278.80x = 786,931.43 × 340,790.54
  4. Step 4: Simplify right side
    570,278.80x = 268,178,787,236.05
  5. Step 5: Solve for x
    x = 268,178,787,236.05/570,278.80
  6. Step 6: Final answer
    x = 470,259.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.