Home / 881,318.16-1,216,216.08-499,417.92

Finding the Fourth Proportional to 881,318.16, 1,216,216.08 and 499,417.92

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Solution

The fourth proportional to 881,318.16, 1,216,216.08 and 499,417.92 is: 689,195.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,318.16 : 1,216,216.08 = 499,417.92 : x
  2. Step 2: Convert to fraction form
    881,318.16/1,216,216.08 = 499,417.92/x
  3. Step 3: Cross multiply
    881,318.16x = 1,216,216.08 × 499,417.92
  4. Step 4: Simplify right side
    881,318.16x = 607,400,104,944.15
  5. Step 5: Solve for x
    x = 607,400,104,944.15/881,318.16
  6. Step 6: Final answer
    x = 689,195.04

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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.