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Finding the Fourth Proportional to 488,653.40, 731,813.70 and 488,653.40

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Solution

The fourth proportional to 488,653.40, 731,813.70 and 488,653.40 is: 731,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,653.40 : 731,813.70 = 488,653.40 : x
  2. Step 2: Convert to fraction form
    488,653.40/731,813.70 = 488,653.40/x
  3. Step 3: Cross multiply
    488,653.40x = 731,813.70 × 488,653.40
  4. Step 4: Simplify right side
    488,653.40x = 357,603,252,671.58
  5. Step 5: Solve for x
    x = 357,603,252,671.58/488,653.40
  6. Step 6: Final answer
    x = 731,813.70

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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.