Home / 673,284.12-929,132.10-371,478.12

Finding the Fourth Proportional to 673,284.12, 929,132.10 and 371,478.12

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Solution

The fourth proportional to 673,284.12, 929,132.10 and 371,478.12 is: 512,639.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,284.12 : 929,132.10 = 371,478.12 : x
  2. Step 2: Convert to fraction form
    673,284.12/929,132.10 = 371,478.12/x
  3. Step 3: Cross multiply
    673,284.12x = 929,132.10 × 371,478.12
  4. Step 4: Simplify right side
    673,284.12x = 345,152,245,739.65
  5. Step 5: Solve for x
    x = 345,152,245,739.65/673,284.12
  6. Step 6: Final answer
    x = 512,639.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.