Home / 881,218.16-1,216,078.08-499,317.76

Finding the Fourth Proportional to 881,218.16, 1,216,078.08 and 499,317.76

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Solution

The fourth proportional to 881,218.16, 1,216,078.08 and 499,317.76 is: 689,056.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,218.16 : 1,216,078.08 = 499,317.76 : x
  2. Step 2: Convert to fraction form
    881,218.16/1,216,078.08 = 499,317.76/x
  3. Step 3: Cross multiply
    881,218.16x = 1,216,078.08 × 499,317.76
  4. Step 4: Simplify right side
    881,218.16x = 607,209,382,890.70
  5. Step 5: Solve for x
    x = 607,209,382,890.70/881,218.16
  6. Step 6: Final answer
    x = 689,056.82

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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.