Home / 900,518.32-1,242,711.57-487,055.56

Finding the Fourth Proportional to 900,518.32, 1,242,711.57 and 487,055.56

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Solution

The fourth proportional to 900,518.32, 1,242,711.57 and 487,055.56 is: 672,134.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,518.32 : 1,242,711.57 = 487,055.56 : x
  2. Step 2: Convert to fraction form
    900,518.32/1,242,711.57 = 487,055.56/x
  3. Step 3: Cross multiply
    900,518.32x = 1,242,711.57 × 487,055.56
  4. Step 4: Simplify right side
    900,518.32x = 605,269,579,644.83
  5. Step 5: Solve for x
    x = 605,269,579,644.83/900,518.32
  6. Step 6: Final answer
    x = 672,134.67

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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.