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Finding the Fourth Proportional to 500,326.47, 749,860.94 and 357,427.89

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Solution

The fourth proportional to 500,326.47, 749,860.94 and 357,427.89 is: 535,692.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,326.47 : 749,860.94 = 357,427.89 : x
  2. Step 2: Convert to fraction form
    500,326.47/749,860.94 = 357,427.89/x
  3. Step 3: Cross multiply
    500,326.47x = 749,860.94 × 357,427.89
  4. Step 4: Simplify right side
    500,326.47x = 268,021,214,471.19
  5. Step 5: Solve for x
    x = 268,021,214,471.19/500,326.47
  6. Step 6: Final answer
    x = 535,692.65

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1.5x scale

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.