Home / 1,038,680.70-1,558,021.05-328,764.30

Finding the Fourth Proportional to 1,038,680.70, 1,558,021.05 and 328,764.30

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Solution

The fourth proportional to 1,038,680.70, 1,558,021.05 and 328,764.30 is: 493,146.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,680.70 : 1,558,021.05 = 328,764.30 : x
  2. Step 2: Convert to fraction form
    1,038,680.70/1,558,021.05 = 328,764.30/x
  3. Step 3: Cross multiply
    1,038,680.70x = 1,558,021.05 × 328,764.30
  4. Step 4: Simplify right side
    1,038,680.70x = 512,221,699,888.52
  5. Step 5: Solve for x
    x = 512,221,699,888.52/1,038,680.70
  6. Step 6: Final answer
    x = 493,146.45

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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.