Home / 470,740.06-705,844.31-430,570.60

Finding the Fourth Proportional to 470,740.06, 705,844.31 and 430,570.60

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Solution

The fourth proportional to 470,740.06, 705,844.31 and 430,570.60 is: 645,612.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,740.06 : 705,844.31 = 430,570.60 : x
  2. Step 2: Convert to fraction form
    470,740.06/705,844.31 = 430,570.60/x
  3. Step 3: Cross multiply
    470,740.06x = 705,844.31 × 430,570.60
  4. Step 4: Simplify right side
    470,740.06x = 303,915,804,145.82
  5. Step 5: Solve for x
    x = 303,915,804,145.82/470,740.06
  6. Step 6: Final answer
    x = 645,612.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.