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Finding the Fourth Proportional to 674,855.03, 931,311.01 and 402,946.69

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Solution

The fourth proportional to 674,855.03, 931,311.01 and 402,946.69 is: 556,073.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,855.03 : 931,311.01 = 402,946.69 : x
  2. Step 2: Convert to fraction form
    674,855.03/931,311.01 = 402,946.69/x
  3. Step 3: Cross multiply
    674,855.03x = 931,311.01 × 402,946.69
  4. Step 4: Simplify right side
    674,855.03x = 375,268,684,183.50
  5. Step 5: Solve for x
    x = 375,268,684,183.50/674,855.03
  6. Step 6: Final answer
    x = 556,073.03

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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.