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Finding the Fourth Proportional to 570,615.68, 787,453.44 and 315,983.36

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Solution

The fourth proportional to 570,615.68, 787,453.44 and 315,983.36 is: 436,059.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,615.68 : 787,453.44 = 315,983.36 : x
  2. Step 2: Convert to fraction form
    570,615.68/787,453.44 = 315,983.36/x
  3. Step 3: Cross multiply
    570,615.68x = 787,453.44 × 315,983.36
  4. Step 4: Simplify right side
    570,615.68x = 248,822,183,814.76
  5. Step 5: Solve for x
    x = 248,822,183,814.76/570,615.68
  6. Step 6: Final answer
    x = 436,059.14

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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.