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Finding the Fourth Proportional to 553,631.80, 829,065.30 and 365,625.40

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Solution

The fourth proportional to 553,631.80, 829,065.30 and 365,625.40 is: 547,525.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,631.80 : 829,065.30 = 365,625.40 : x
  2. Step 2: Convert to fraction form
    553,631.80/829,065.30 = 365,625.40/x
  3. Step 3: Cross multiply
    553,631.80x = 829,065.30 × 365,625.40
  4. Step 4: Simplify right side
    553,631.80x = 303,127,331,938.62
  5. Step 5: Solve for x
    x = 303,127,331,938.62/553,631.80
  6. Step 6: Final answer
    x = 547,525.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.