Home / 912,892.57-1,369,463.46-380,289.02

Finding the Fourth Proportional to 912,892.57, 1,369,463.46 and 380,289.02

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Solution

The fourth proportional to 912,892.57, 1,369,463.46 and 380,289.02 is: 570,485.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,892.57 : 1,369,463.46 = 380,289.02 : x
  2. Step 2: Convert to fraction form
    912,892.57/1,369,463.46 = 380,289.02/x
  3. Step 3: Cross multiply
    912,892.57x = 1,369,463.46 × 380,289.02
  4. Step 4: Simplify right side
    912,892.57x = 520,791,908,855.81
  5. Step 5: Solve for x
    x = 520,791,908,855.81/912,892.57
  6. Step 6: Final answer
    x = 570,485.43

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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.