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Finding the Fourth Proportional to 688,364.61, 949,612.05 and 446,722.98

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Solution

The fourth proportional to 688,364.61, 949,612.05 and 446,722.98 is: 616,262.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,364.61 : 949,612.05 = 446,722.98 : x
  2. Step 2: Convert to fraction form
    688,364.61/949,612.05 = 446,722.98/x
  3. Step 3: Cross multiply
    688,364.61x = 949,612.05 × 446,722.98
  4. Step 4: Simplify right side
    688,364.61x = 424,213,524,819.91
  5. Step 5: Solve for x
    x = 424,213,524,819.91/688,364.61
  6. Step 6: Final answer
    x = 616,262.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.