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Finding the Fourth Proportional to 659,706.58, 910,396.85 and 357,900.58

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Solution

The fourth proportional to 659,706.58, 910,396.85 and 357,900.58 is: 493,903.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,706.58 : 910,396.85 = 357,900.58 : x
  2. Step 2: Convert to fraction form
    659,706.58/910,396.85 = 357,900.58/x
  3. Step 3: Cross multiply
    659,706.58x = 910,396.85 × 357,900.58
  4. Step 4: Simplify right side
    659,706.58x = 325,831,560,645.17
  5. Step 5: Solve for x
    x = 325,831,560,645.17/659,706.58
  6. Step 6: Final answer
    x = 493,903.76

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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.