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Finding the Fourth Proportional to 570,334.66, 787,008 and 340,846.30

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Solution

The fourth proportional to 570,334.66, 787,008 and 340,846.30 is: 470,335.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,334.66 : 787,008 = 340,846.30 : x
  2. Step 2: Convert to fraction form
    570,334.66/787,008 = 340,846.30/x
  3. Step 3: Cross multiply
    570,334.66x = 787,008 × 340,846.30
  4. Step 4: Simplify right side
    570,334.66x = 268,248,764,870.40
  5. Step 5: Solve for x
    x = 268,248,764,870.40/570,334.66
  6. Step 6: Final answer
    x = 470,335.72

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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.