Home / 857,900.12-1,183,903.56-475,926.90

Finding the Fourth Proportional to 857,900.12, 1,183,903.56 and 475,926.90

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Solution

The fourth proportional to 857,900.12, 1,183,903.56 and 475,926.90 is: 656,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,900.12 : 1,183,903.56 = 475,926.90 : x
  2. Step 2: Convert to fraction form
    857,900.12/1,183,903.56 = 475,926.90/x
  3. Step 3: Cross multiply
    857,900.12x = 1,183,903.56 × 475,926.90
  4. Step 4: Simplify right side
    857,900.12x = 563,451,551,209.76
  5. Step 5: Solve for x
    x = 563,451,551,209.76/857,900.12
  6. Step 6: Final answer
    x = 656,779.90

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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.