Home / 918,000.36-1,266,869.03-504,529.64

Finding the Fourth Proportional to 918,000.36, 1,266,869.03 and 504,529.64

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Solution

The fourth proportional to 918,000.36, 1,266,869.03 and 504,529.64 is: 696,266.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,000.36 : 1,266,869.03 = 504,529.64 : x
  2. Step 2: Convert to fraction form
    918,000.36/1,266,869.03 = 504,529.64/x
  3. Step 3: Cross multiply
    918,000.36x = 1,266,869.03 × 504,529.64
  4. Step 4: Simplify right side
    918,000.36x = 639,172,971,526.82
  5. Step 5: Solve for x
    x = 639,172,971,526.82/918,000.36
  6. Step 6: Final answer
    x = 696,266.58

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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.