Home / 672,080.40-1,008,120.60-555,440.40

Finding the Fourth Proportional to 672,080.40, 1,008,120.60 and 555,440.40

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Solution

The fourth proportional to 672,080.40, 1,008,120.60 and 555,440.40 is: 833,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,080.40 : 1,008,120.60 = 555,440.40 : x
  2. Step 2: Convert to fraction form
    672,080.40/1,008,120.60 = 555,440.40/x
  3. Step 3: Cross multiply
    672,080.40x = 1,008,120.60 × 555,440.40
  4. Step 4: Simplify right side
    672,080.40x = 559,950,909,312.24
  5. Step 5: Solve for x
    x = 559,950,909,312.24/672,080.40
  6. Step 6: Final answer
    x = 833,160.60

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Double scale
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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.