Home / 570,619.58-787,478.75-315,970.76

Finding the Fourth Proportional to 570,619.58, 787,478.75 and 315,970.76

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Solution

The fourth proportional to 570,619.58, 787,478.75 and 315,970.76 is: 436,052.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,619.58 : 787,478.75 = 315,970.76 : x
  2. Step 2: Convert to fraction form
    570,619.58/787,478.75 = 315,970.76/x
  3. Step 3: Cross multiply
    570,619.58x = 787,478.75 × 315,970.76
  4. Step 4: Simplify right side
    570,619.58x = 248,820,253,604.10
  5. Step 5: Solve for x
    x = 248,820,253,604.10/570,619.58
  6. Step 6: Final answer
    x = 436,052.78

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1.5x scale

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.