Home / 810,225.21-1,117,759.50-487,748.46

Finding the Fourth Proportional to 810,225.21, 1,117,759.50 and 487,748.46

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Solution

The fourth proportional to 810,225.21, 1,117,759.50 and 487,748.46 is: 672,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,225.21 : 1,117,759.50 = 487,748.46 : x
  2. Step 2: Convert to fraction form
    810,225.21/1,117,759.50 = 487,748.46/x
  3. Step 3: Cross multiply
    810,225.21x = 1,117,759.50 × 487,748.46
  4. Step 4: Simplify right side
    810,225.21x = 545,185,474,775.37
  5. Step 5: Solve for x
    x = 545,185,474,775.37/810,225.21
  6. Step 6: Final answer
    x = 672,881.40

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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.