Home / 900,516.32-1,242,708.81-487,053.56

Finding the Fourth Proportional to 900,516.32, 1,242,708.81 and 487,053.56

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Solution

The fourth proportional to 900,516.32, 1,242,708.81 and 487,053.56 is: 672,131.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,516.32 : 1,242,708.81 = 487,053.56 : x
  2. Step 2: Convert to fraction form
    900,516.32/1,242,708.81 = 487,053.56/x
  3. Step 3: Cross multiply
    900,516.32x = 1,242,708.81 × 487,053.56
  4. Step 4: Simplify right side
    900,516.32x = 605,265,746,574.03
  5. Step 5: Solve for x
    x = 605,265,746,574.03/900,516.32
  6. Step 6: Final answer
    x = 672,131.90

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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.