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Finding the Fourth Proportional to 660,873.38, 912,050.36 and 374,395.82

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Solution

The fourth proportional to 660,873.38, 912,050.36 and 374,395.82 is: 516,691.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,873.38 : 912,050.36 = 374,395.82 : x
  2. Step 2: Convert to fraction form
    660,873.38/912,050.36 = 374,395.82/x
  3. Step 3: Cross multiply
    660,873.38x = 912,050.36 × 374,395.82
  4. Step 4: Simplify right side
    660,873.38x = 341,467,835,981.26
  5. Step 5: Solve for x
    x = 341,467,835,981.26/660,873.38
  6. Step 6: Final answer
    x = 516,691.77

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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.