Home / 1,006,719.21-1,389,272.70-554,010.21

Finding the Fourth Proportional to 1,006,719.21, 1,389,272.70 and 554,010.21

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Solution

The fourth proportional to 1,006,719.21, 1,389,272.70 and 554,010.21 is: 764,534.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,719.21 : 1,389,272.70 = 554,010.21 : x
  2. Step 2: Convert to fraction form
    1,006,719.21/1,389,272.70 = 554,010.21/x
  3. Step 3: Cross multiply
    1,006,719.21x = 1,389,272.70 × 554,010.21
  4. Step 4: Simplify right side
    1,006,719.21x = 769,671,260,274.27
  5. Step 5: Solve for x
    x = 769,671,260,274.27/1,006,719.21
  6. Step 6: Final answer
    x = 764,534.19

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Double scale
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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.