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Finding the Fourth Proportional to 434,920.80, 651,344.40 and 434,920.80

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Solution

The fourth proportional to 434,920.80, 651,344.40 and 434,920.80 is: 651,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,920.80 : 651,344.40 = 434,920.80 : x
  2. Step 2: Convert to fraction form
    434,920.80/651,344.40 = 434,920.80/x
  3. Step 3: Cross multiply
    434,920.80x = 651,344.40 × 434,920.80
  4. Step 4: Simplify right side
    434,920.80x = 283,283,227,523.52
  5. Step 5: Solve for x
    x = 283,283,227,523.52/434,920.80
  6. Step 6: Final answer
    x = 651,344.40

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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.