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Finding the Fourth Proportional to 556,887.20, 835,330.80 and 547,671.20

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Solution

The fourth proportional to 556,887.20, 835,330.80 and 547,671.20 is: 821,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,887.20 : 835,330.80 = 547,671.20 : x
  2. Step 2: Convert to fraction form
    556,887.20/835,330.80 = 547,671.20/x
  3. Step 3: Cross multiply
    556,887.20x = 835,330.80 × 547,671.20
  4. Step 4: Simplify right side
    556,887.20x = 457,486,621,632.96
  5. Step 5: Solve for x
    x = 457,486,621,632.96/556,887.20
  6. Step 6: Final answer
    x = 821,506.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.