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Finding the Fourth Proportional to 661,333.74, 912,636.28 and 359,527.74

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Solution

The fourth proportional to 661,333.74, 912,636.28 and 359,527.74 is: 496,145.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,333.74 : 912,636.28 = 359,527.74 : x
  2. Step 2: Convert to fraction form
    661,333.74/912,636.28 = 359,527.74/x
  3. Step 3: Cross multiply
    661,333.74x = 912,636.28 × 359,527.74
  4. Step 4: Simplify right side
    661,333.74x = 328,118,059,190.41
  5. Step 5: Solve for x
    x = 328,118,059,190.41/661,333.74
  6. Step 6: Final answer
    x = 496,145.95

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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.