Home / 878,160.71-1,212,064.41-571,703.49

Finding the Fourth Proportional to 878,160.71, 1,212,064.41 and 571,703.49

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Solution

The fourth proportional to 878,160.71, 1,212,064.41 and 571,703.49 is: 789,082.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,160.71 : 1,212,064.41 = 571,703.49 : x
  2. Step 2: Convert to fraction form
    878,160.71/1,212,064.41 = 571,703.49/x
  3. Step 3: Cross multiply
    878,160.71x = 1,212,064.41 × 571,703.49
  4. Step 4: Simplify right side
    878,160.71x = 692,941,453,301.79
  5. Step 5: Solve for x
    x = 692,941,453,301.79/878,160.71
  6. Step 6: Final answer
    x = 789,082.74

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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.