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Finding the Fourth Proportional to 553,159.21, 829,754.61 and 300,560.71

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Solution

The fourth proportional to 553,159.21, 829,754.61 and 300,560.71 is: 450,849.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,159.21 : 829,754.61 = 300,560.71 : x
  2. Step 2: Convert to fraction form
    553,159.21/829,754.61 = 300,560.71/x
  3. Step 3: Cross multiply
    553,159.21x = 829,754.61 × 300,560.71
  4. Step 4: Simplify right side
    553,159.21x = 249,391,634,707.37
  5. Step 5: Solve for x
    x = 249,391,634,707.37/553,159.21
  6. Step 6: Final answer
    x = 450,849.65

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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.