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Finding the Fourth Proportional to 652,087.68, 900,069.12 and 422,637.12

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Solution

The fourth proportional to 652,087.68, 900,069.12 and 422,637.12 is: 583,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,087.68 : 900,069.12 = 422,637.12 : x
  2. Step 2: Convert to fraction form
    652,087.68/900,069.12 = 422,637.12/x
  3. Step 3: Cross multiply
    652,087.68x = 900,069.12 × 422,637.12
  4. Step 4: Simplify right side
    652,087.68x = 380,402,620,677.73
  5. Step 5: Solve for x
    x = 380,402,620,677.73/652,087.68
  6. Step 6: Final answer
    x = 583,361.15

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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.