Home / 864,004.90-1,296,007.35-547,521.70

Finding the Fourth Proportional to 864,004.90, 1,296,007.35 and 547,521.70

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Solution

The fourth proportional to 864,004.90, 1,296,007.35 and 547,521.70 is: 821,282.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,004.90 : 1,296,007.35 = 547,521.70 : x
  2. Step 2: Convert to fraction form
    864,004.90/1,296,007.35 = 547,521.70/x
  3. Step 3: Cross multiply
    864,004.90x = 1,296,007.35 × 547,521.70
  4. Step 4: Simplify right side
    864,004.90x = 709,592,147,484.50
  5. Step 5: Solve for x
    x = 709,592,147,484.50/864,004.90
  6. Step 6: Final answer
    x = 821,282.55

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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.