Home / 603,005.40-904,508.10-402,238.80

Finding the Fourth Proportional to 603,005.40, 904,508.10 and 402,238.80

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Solution

The fourth proportional to 603,005.40, 904,508.10 and 402,238.80 is: 603,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,005.40 : 904,508.10 = 402,238.80 : x
  2. Step 2: Convert to fraction form
    603,005.40/904,508.10 = 402,238.80/x
  3. Step 3: Cross multiply
    603,005.40x = 904,508.10 × 402,238.80
  4. Step 4: Simplify right side
    603,005.40x = 363,828,252,734.28
  5. Step 5: Solve for x
    x = 363,828,252,734.28/603,005.40
  6. Step 6: Final answer
    x = 603,358.20

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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.