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Finding the Fourth Proportional to 570,410.36, 787,164.98 and 340,956.53

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Solution

The fourth proportional to 570,410.36, 787,164.98 and 340,956.53 is: 470,519.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,410.36 : 787,164.98 = 340,956.53 : x
  2. Step 2: Convert to fraction form
    570,410.36/787,164.98 = 340,956.53/x
  3. Step 3: Cross multiply
    570,410.36x = 787,164.98 × 340,956.53
  4. Step 4: Simplify right side
    570,410.36x = 268,389,034,477.71
  5. Step 5: Solve for x
    x = 268,389,034,477.71/570,410.36
  6. Step 6: Final answer
    x = 470,519.22

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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.