Home / 690,553.10-953,011.19-418,632.46

Finding the Fourth Proportional to 690,553.10, 953,011.19 and 418,632.46

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Solution

The fourth proportional to 690,553.10, 953,011.19 and 418,632.46 is: 577,741.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,553.10 : 953,011.19 = 418,632.46 : x
  2. Step 2: Convert to fraction form
    690,553.10/953,011.19 = 418,632.46/x
  3. Step 3: Cross multiply
    690,553.10x = 953,011.19 × 418,632.46
  4. Step 4: Simplify right side
    690,553.10x = 398,961,418,877.23
  5. Step 5: Solve for x
    x = 398,961,418,877.23/690,553.10
  6. Step 6: Final answer
    x = 577,741.84

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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.