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Finding the Fourth Proportional to 720,640.02, 994,581.90 and 414,710.04

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Solution

The fourth proportional to 720,640.02, 994,581.90 and 414,710.04 is: 572,356.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,640.02 : 994,581.90 = 414,710.04 : x
  2. Step 2: Convert to fraction form
    720,640.02/994,581.90 = 414,710.04/x
  3. Step 3: Cross multiply
    720,640.02x = 994,581.90 × 414,710.04
  4. Step 4: Simplify right side
    720,640.02x = 412,463,099,532.28
  5. Step 5: Solve for x
    x = 412,463,099,532.28/720,640.02
  6. Step 6: Final answer
    x = 572,356.64

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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.