Home / 919,000.68-1,378,546.14-245,088.12

Finding the Fourth Proportional to 919,000.68, 1,378,546.14 and 245,088.12

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Solution

The fourth proportional to 919,000.68, 1,378,546.14 and 245,088.12 is: 367,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,000.68 : 1,378,546.14 = 245,088.12 : x
  2. Step 2: Convert to fraction form
    919,000.68/1,378,546.14 = 245,088.12/x
  3. Step 3: Cross multiply
    919,000.68x = 1,378,546.14 × 245,088.12
  4. Step 4: Simplify right side
    919,000.68x = 337,865,281,785.86
  5. Step 5: Solve for x
    x = 337,865,281,785.86/919,000.68
  6. Step 6: Final answer
    x = 367,644.21

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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.