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Finding the Fourth Proportional to 653,127.80, 901,449 and 377,497.40

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Solution

The fourth proportional to 653,127.80, 901,449 and 377,497.40 is: 521,023.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,127.80 : 901,449 = 377,497.40 : x
  2. Step 2: Convert to fraction form
    653,127.80/901,449 = 377,497.40/x
  3. Step 3: Cross multiply
    653,127.80x = 901,449 × 377,497.40
  4. Step 4: Simplify right side
    653,127.80x = 340,294,653,732.60
  5. Step 5: Solve for x
    x = 340,294,653,732.60/653,127.80
  6. Step 6: Final answer
    x = 521,023.07

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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.