Home / 1,018,274.87-1,405,220.25-559,419.16

Finding the Fourth Proportional to 1,018,274.87, 1,405,220.25 and 559,419.16

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Solution

The fourth proportional to 1,018,274.87, 1,405,220.25 and 559,419.16 is: 771,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,274.87 : 1,405,220.25 = 559,419.16 : x
  2. Step 2: Convert to fraction form
    1,018,274.87/1,405,220.25 = 559,419.16/x
  3. Step 3: Cross multiply
    1,018,274.87x = 1,405,220.25 × 559,419.16
  4. Step 4: Simplify right side
    1,018,274.87x = 786,107,131,869.99
  5. Step 5: Solve for x
    x = 786,107,131,869.99/1,018,274.87
  6. Step 6: Final answer
    x = 771,998.95

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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.