Home / 881,255.16-1,216,128.96-499,354.92

Finding the Fourth Proportional to 881,255.16, 1,216,128.96 and 499,354.92

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Solution

The fourth proportional to 881,255.16, 1,216,128.96 and 499,354.92 is: 689,108.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,255.16 : 1,216,128.96 = 499,354.92 : x
  2. Step 2: Convert to fraction form
    881,255.16/1,216,128.96 = 499,354.92/x
  3. Step 3: Cross multiply
    881,255.16x = 1,216,128.96 × 499,354.92
  4. Step 4: Simplify right side
    881,255.16x = 607,279,979,530.48
  5. Step 5: Solve for x
    x = 607,279,979,530.48/881,255.16
  6. Step 6: Final answer
    x = 689,108.00

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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.