Home / 684,972.16-945,247.43-379,048.35

Finding the Fourth Proportional to 684,972.16, 945,247.43 and 379,048.35

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Solution

The fourth proportional to 684,972.16, 945,247.43 and 379,048.35 is: 523,078.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,972.16 : 945,247.43 = 379,048.35 : x
  2. Step 2: Convert to fraction form
    684,972.16/945,247.43 = 379,048.35/x
  3. Step 3: Cross multiply
    684,972.16x = 945,247.43 × 379,048.35
  4. Step 4: Simplify right side
    684,972.16x = 358,294,478,683.24
  5. Step 5: Solve for x
    x = 358,294,478,683.24/684,972.16
  6. Step 6: Final answer
    x = 523,078.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.