Home / 674,948.80-1,009,935.44-405,240.87

Finding the Fourth Proportional to 674,948.80, 1,009,935.44 and 405,240.87

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Solution

The fourth proportional to 674,948.80, 1,009,935.44 and 405,240.87 is: 606,367.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,948.80 : 1,009,935.44 = 405,240.87 : x
  2. Step 2: Convert to fraction form
    674,948.80/1,009,935.44 = 405,240.87/x
  3. Step 3: Cross multiply
    674,948.80x = 1,009,935.44 × 405,240.87
  4. Step 4: Simplify right side
    674,948.80x = 409,267,119,630.14
  5. Step 5: Solve for x
    x = 409,267,119,630.14/674,948.80
  6. Step 6: Final answer
    x = 606,367.65

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1.5x scale

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.