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Finding the Fourth Proportional to 561,302.76, 841,983.30 and 280,725.24

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Solution

The fourth proportional to 561,302.76, 841,983.30 and 280,725.24 is: 421,102.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,302.76 : 841,983.30 = 280,725.24 : x
  2. Step 2: Convert to fraction form
    561,302.76/841,983.30 = 280,725.24/x
  3. Step 3: Cross multiply
    561,302.76x = 841,983.30 × 280,725.24
  4. Step 4: Simplify right side
    561,302.76x = 236,365,963,968.49
  5. Step 5: Solve for x
    x = 236,365,963,968.49/561,302.76
  6. Step 6: Final answer
    x = 421,102.44

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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.