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Finding the Fourth Proportional to 440,880.01, 657,660.06 and 426,120.90

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Solution

The fourth proportional to 440,880.01, 657,660.06 and 426,120.90 is: 635,643.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,880.01 : 657,660.06 = 426,120.90 : x
  2. Step 2: Convert to fraction form
    440,880.01/657,660.06 = 426,120.90/x
  3. Step 3: Cross multiply
    440,880.01x = 657,660.06 × 426,120.90
  4. Step 4: Simplify right side
    440,880.01x = 280,242,697,894.37
  5. Step 5: Solve for x
    x = 280,242,697,894.37/440,880.01
  6. Step 6: Final answer
    x = 635,643.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.