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Finding the Fourth Proportional to 660,908.62, 912,051.66 and 374,483.31

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Solution

The fourth proportional to 660,908.62, 912,051.66 and 374,483.31 is: 516,785.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,908.62 : 912,051.66 = 374,483.31 : x
  2. Step 2: Convert to fraction form
    660,908.62/912,051.66 = 374,483.31/x
  3. Step 3: Cross multiply
    660,908.62x = 912,051.66 × 374,483.31
  4. Step 4: Simplify right side
    660,908.62x = 341,548,124,527.80
  5. Step 5: Solve for x
    x = 341,548,124,527.80/660,908.62
  6. Step 6: Final answer
    x = 516,785.70

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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.