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Finding the Fourth Proportional to 611,457.40, 843,217.32 and 475,251.04

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Solution

The fourth proportional to 611,457.40, 843,217.32 and 475,251.04 is: 655,384.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,457.40 : 843,217.32 = 475,251.04 : x
  2. Step 2: Convert to fraction form
    611,457.40/843,217.32 = 475,251.04/x
  3. Step 3: Cross multiply
    611,457.40x = 843,217.32 × 475,251.04
  4. Step 4: Simplify right side
    611,457.40x = 400,739,908,276.01
  5. Step 5: Solve for x
    x = 400,739,908,276.01/611,457.40
  6. Step 6: Final answer
    x = 655,384.84

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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.