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Finding the Fourth Proportional to 570,285.54, 786,940.65 and 340,797.15

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Solution

The fourth proportional to 570,285.54, 786,940.65 and 340,797.15 is: 470,268.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,285.54 : 786,940.65 = 340,797.15 : x
  2. Step 2: Convert to fraction form
    570,285.54/786,940.65 = 340,797.15/x
  3. Step 3: Cross multiply
    570,285.54x = 786,940.65 × 340,797.15
  4. Step 4: Simplify right side
    570,285.54x = 268,187,130,739.15
  5. Step 5: Solve for x
    x = 268,187,130,739.15/570,285.54
  6. Step 6: Final answer
    x = 470,268.16

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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.