Home / 912,892.66-1,369,463.60-380,289.11

Finding the Fourth Proportional to 912,892.66, 1,369,463.60 and 380,289.11

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Solution

The fourth proportional to 912,892.66, 1,369,463.60 and 380,289.11 is: 570,485.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,892.66 : 1,369,463.60 = 380,289.11 : x
  2. Step 2: Convert to fraction form
    912,892.66/1,369,463.60 = 380,289.11/x
  3. Step 3: Cross multiply
    912,892.66x = 1,369,463.60 × 380,289.11
  4. Step 4: Simplify right side
    912,892.66x = 520,792,091,434.21
  5. Step 5: Solve for x
    x = 520,792,091,434.21/912,892.66
  6. Step 6: Final answer
    x = 570,485.57

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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.