Home / 414,332.51-620,501.85-280,807.65

Finding the Fourth Proportional to 414,332.51, 620,501.85 and 280,807.65

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Solution

The fourth proportional to 414,332.51, 620,501.85 and 280,807.65 is: 420,535.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,332.51 : 620,501.85 = 280,807.65 : x
  2. Step 2: Convert to fraction form
    414,332.51/620,501.85 = 280,807.65/x
  3. Step 3: Cross multiply
    414,332.51x = 620,501.85 × 280,807.65
  4. Step 4: Simplify right side
    414,332.51x = 174,241,666,319.15
  5. Step 5: Solve for x
    x = 174,241,666,319.15/414,332.51
  6. Step 6: Final answer
    x = 420,535.84

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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.