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Finding the Fourth Proportional to 611,003.62, 916,209.48 and 358,366.84

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Solution

The fourth proportional to 611,003.62, 916,209.48 and 358,366.84 is: 537,376.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,003.62 : 916,209.48 = 358,366.84 : x
  2. Step 2: Convert to fraction form
    611,003.62/916,209.48 = 358,366.84/x
  3. Step 3: Cross multiply
    611,003.62x = 916,209.48 × 358,366.84
  4. Step 4: Simplify right side
    611,003.62x = 328,339,096,125.64
  5. Step 5: Solve for x
    x = 328,339,096,125.64/611,003.62
  6. Step 6: Final answer
    x = 537,376.68

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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.