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Finding the Fourth Proportional to 570,618.58, 787,444.02 and 315,964.30

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Solution

The fourth proportional to 570,618.58, 787,444.02 and 315,964.30 is: 436,025.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,618.58 : 787,444.02 = 315,964.30 : x
  2. Step 2: Convert to fraction form
    570,618.58/787,444.02 = 315,964.30/x
  3. Step 3: Cross multiply
    570,618.58x = 787,444.02 × 315,964.30
  4. Step 4: Simplify right side
    570,618.58x = 248,804,198,568.49
  5. Step 5: Solve for x
    x = 248,804,198,568.49/570,618.58
  6. Step 6: Final answer
    x = 436,025.41

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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.