Home / 447,376.72-617,394.40-256,426.10

Finding the Fourth Proportional to 447,376.72, 617,394.40 and 256,426.10

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Solution

The fourth proportional to 447,376.72, 617,394.40 and 256,426.10 is: 353,876.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,376.72 : 617,394.40 = 256,426.10 : x
  2. Step 2: Convert to fraction form
    447,376.72/617,394.40 = 256,426.10/x
  3. Step 3: Cross multiply
    447,376.72x = 617,394.40 × 256,426.10
  4. Step 4: Simplify right side
    447,376.72x = 158,316,038,153.84
  5. Step 5: Solve for x
    x = 158,316,038,153.84/447,376.72
  6. Step 6: Final answer
    x = 353,876.34

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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.