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Finding the Fourth Proportional to 462,370.40, 693,555.62 and 129,946.40

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Solution

The fourth proportional to 462,370.40, 693,555.62 and 129,946.40 is: 194,919.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,370.40 : 693,555.62 = 129,946.40 : x
  2. Step 2: Convert to fraction form
    462,370.40/693,555.62 = 129,946.40/x
  3. Step 3: Cross multiply
    462,370.40x = 693,555.62 × 129,946.40
  4. Step 4: Simplify right side
    462,370.40x = 90,125,056,018.77
  5. Step 5: Solve for x
    x = 90,125,056,018.77/462,370.40
  6. Step 6: Final answer
    x = 194,919.61

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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.