Home / 485,037.40-727,556.10-477,164.20

Finding the Fourth Proportional to 485,037.40, 727,556.10 and 477,164.20

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Solution

The fourth proportional to 485,037.40, 727,556.10 and 477,164.20 is: 715,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,037.40 : 727,556.10 = 477,164.20 : x
  2. Step 2: Convert to fraction form
    485,037.40/727,556.10 = 477,164.20/x
  3. Step 3: Cross multiply
    485,037.40x = 727,556.10 × 477,164.20
  4. Step 4: Simplify right side
    485,037.40x = 347,163,724,411.62
  5. Step 5: Solve for x
    x = 347,163,724,411.62/485,037.40
  6. Step 6: Final answer
    x = 715,746.30

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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.