Home / 1,167,140.39-1,611,982.34-784,502.87

Finding the Fourth Proportional to 1,167,140.39, 1,611,982.34 and 784,502.87

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Solution

The fourth proportional to 1,167,140.39, 1,611,982.34 and 784,502.87 is: 1,083,506.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,140.39 : 1,611,982.34 = 784,502.87 : x
  2. Step 2: Convert to fraction form
    1,167,140.39/1,611,982.34 = 784,502.87/x
  3. Step 3: Cross multiply
    1,167,140.39x = 1,611,982.34 × 784,502.87
  4. Step 4: Simplify right side
    1,167,140.39x = 1,264,604,774,352.59
  5. Step 5: Solve for x
    x = 1,264,604,774,352.59/1,167,140.39
  6. Step 6: Final answer
    x = 1,083,506.99

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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.