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Finding the Fourth Proportional to 507,366.12, 700,176.57 and 289,570.43

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Solution

The fourth proportional to 507,366.12, 700,176.57 and 289,570.43 is: 399,613.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,366.12 : 700,176.57 = 289,570.43 : x
  2. Step 2: Convert to fraction form
    507,366.12/700,176.57 = 289,570.43/x
  3. Step 3: Cross multiply
    507,366.12x = 700,176.57 × 289,570.43
  4. Step 4: Simplify right side
    507,366.12x = 202,750,431,115.38
  5. Step 5: Solve for x
    x = 202,750,431,115.38/507,366.12
  6. Step 6: Final answer
    x = 399,613.65

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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.