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Finding the Fourth Proportional to 409,063.40, 613,595.10 and 249,631.10

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Solution

The fourth proportional to 409,063.40, 613,595.10 and 249,631.10 is: 374,446.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,063.40 : 613,595.10 = 249,631.10 : x
  2. Step 2: Convert to fraction form
    409,063.40/613,595.10 = 249,631.10/x
  3. Step 3: Cross multiply
    409,063.40x = 613,595.10 × 249,631.10
  4. Step 4: Simplify right side
    409,063.40x = 153,172,419,767.61
  5. Step 5: Solve for x
    x = 153,172,419,767.61/409,063.40
  6. Step 6: Final answer
    x = 374,446.65

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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.