Home / 672,095.40-1,008,143.10-459,205.80

Finding the Fourth Proportional to 672,095.40, 1,008,143.10 and 459,205.80

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Solution

The fourth proportional to 672,095.40, 1,008,143.10 and 459,205.80 is: 688,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,095.40 : 1,008,143.10 = 459,205.80 : x
  2. Step 2: Convert to fraction form
    672,095.40/1,008,143.10 = 459,205.80/x
  3. Step 3: Cross multiply
    672,095.40x = 1,008,143.10 × 459,205.80
  4. Step 4: Simplify right side
    672,095.40x = 462,945,158,749.98
  5. Step 5: Solve for x
    x = 462,945,158,749.98/672,095.40
  6. Step 6: Final answer
    x = 688,808.70

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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.