Home / 805,006.10-1,207,509.15-385,102.10

Finding the Fourth Proportional to 805,006.10, 1,207,509.15 and 385,102.10

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Solution

The fourth proportional to 805,006.10, 1,207,509.15 and 385,102.10 is: 577,653.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,006.10 : 1,207,509.15 = 385,102.10 : x
  2. Step 2: Convert to fraction form
    805,006.10/1,207,509.15 = 385,102.10/x
  3. Step 3: Cross multiply
    805,006.10x = 1,207,509.15 × 385,102.10
  4. Step 4: Simplify right side
    805,006.10x = 465,014,309,434.22
  5. Step 5: Solve for x
    x = 465,014,309,434.22/805,006.10
  6. Step 6: Final answer
    x = 577,653.15

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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.