Home / 1,221,000.90-1,831,501.35-334,536.90

Finding the Fourth Proportional to 1,221,000.90, 1,831,501.35 and 334,536.90

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Solution

The fourth proportional to 1,221,000.90, 1,831,501.35 and 334,536.90 is: 501,805.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,000.90 : 1,831,501.35 = 334,536.90 : x
  2. Step 2: Convert to fraction form
    1,221,000.90/1,831,501.35 = 334,536.90/x
  3. Step 3: Cross multiply
    1,221,000.90x = 1,831,501.35 × 334,536.90
  4. Step 4: Simplify right side
    1,221,000.90x = 612,704,783,974.82
  5. Step 5: Solve for x
    x = 612,704,783,974.82/1,221,000.90
  6. Step 6: Final answer
    x = 501,805.35

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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.