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Finding the Fourth Proportional to 661,325.53, 912,700.59 and 374,814.86

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Solution

The fourth proportional to 661,325.53, 912,700.59 and 374,814.86 is: 517,284.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,325.53 : 912,700.59 = 374,814.86 : x
  2. Step 2: Convert to fraction form
    661,325.53/912,700.59 = 374,814.86/x
  3. Step 3: Cross multiply
    661,325.53x = 912,700.59 × 374,814.86
  4. Step 4: Simplify right side
    661,325.53x = 342,093,743,862.77
  5. Step 5: Solve for x
    x = 342,093,743,862.77/661,325.53
  6. Step 6: Final answer
    x = 517,284.95

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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.