Home / 690,973.14-953,035.36-457,978.70

Finding the Fourth Proportional to 690,973.14, 953,035.36 and 457,978.70

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Solution

The fourth proportional to 690,973.14, 953,035.36 and 457,978.70 is: 631,674.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,973.14 : 953,035.36 = 457,978.70 : x
  2. Step 2: Convert to fraction form
    690,973.14/953,035.36 = 457,978.70/x
  3. Step 3: Cross multiply
    690,973.14x = 953,035.36 × 457,978.70
  4. Step 4: Simplify right side
    690,973.14x = 436,469,895,226.83
  5. Step 5: Solve for x
    x = 436,469,895,226.83/690,973.14
  6. Step 6: Final answer
    x = 631,674.19

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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.