Home / 912,900.65-1,369,475.51-380,297.03

Finding the Fourth Proportional to 912,900.65, 1,369,475.51 and 380,297.03

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Solution

The fourth proportional to 912,900.65, 1,369,475.51 and 380,297.03 is: 570,497.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,900.65 : 1,369,475.51 = 380,297.03 : x
  2. Step 2: Convert to fraction form
    912,900.65/1,369,475.51 = 380,297.03/x
  3. Step 3: Cross multiply
    912,900.65x = 1,369,475.51 × 380,297.03
  4. Step 4: Simplify right side
    912,900.65x = 520,807,460,361.87
  5. Step 5: Solve for x
    x = 520,807,460,361.87/912,900.65
  6. Step 6: Final answer
    x = 570,497.42

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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.