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Finding the Fourth Proportional to 434,627.40, 609,307.80 and 434,627.40

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Solution

The fourth proportional to 434,627.40, 609,307.80 and 434,627.40 is: 609,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,627.40 : 609,307.80 = 434,627.40 : x
  2. Step 2: Convert to fraction form
    434,627.40/609,307.80 = 434,627.40/x
  3. Step 3: Cross multiply
    434,627.40x = 609,307.80 × 434,627.40
  4. Step 4: Simplify right side
    434,627.40x = 264,821,864,913.72
  5. Step 5: Solve for x
    x = 264,821,864,913.72/434,627.40
  6. Step 6: Final answer
    x = 609,307.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.