Home / 993,775.80-1,490,663.70-328,927.80

Finding the Fourth Proportional to 993,775.80, 1,490,663.70 and 328,927.80

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Solution

The fourth proportional to 993,775.80, 1,490,663.70 and 328,927.80 is: 493,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,775.80 : 1,490,663.70 = 328,927.80 : x
  2. Step 2: Convert to fraction form
    993,775.80/1,490,663.70 = 328,927.80/x
  3. Step 3: Cross multiply
    993,775.80x = 1,490,663.70 × 328,927.80
  4. Step 4: Simplify right side
    993,775.80x = 490,320,731,380.86
  5. Step 5: Solve for x
    x = 490,320,731,380.86/993,775.80
  6. Step 6: Final answer
    x = 493,391.70

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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.