Home / 864,005.40-1,296,008.10-547,522.20

Finding the Fourth Proportional to 864,005.40, 1,296,008.10 and 547,522.20

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Solution

The fourth proportional to 864,005.40, 1,296,008.10 and 547,522.20 is: 821,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,005.40 : 1,296,008.10 = 547,522.20 : x
  2. Step 2: Convert to fraction form
    864,005.40/1,296,008.10 = 547,522.20/x
  3. Step 3: Cross multiply
    864,005.40x = 1,296,008.10 × 547,522.20
  4. Step 4: Simplify right side
    864,005.40x = 709,593,206,129.82
  5. Step 5: Solve for x
    x = 709,593,206,129.82/864,005.40
  6. Step 6: Final answer
    x = 821,283.30

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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.