Home / 739,890.05-1,021,000.04-417,556.32

Finding the Fourth Proportional to 739,890.05, 1,021,000.04 and 417,556.32

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Solution

The fourth proportional to 739,890.05, 1,021,000.04 and 417,556.32 is: 576,200.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,890.05 : 1,021,000.04 = 417,556.32 : x
  2. Step 2: Convert to fraction form
    739,890.05/1,021,000.04 = 417,556.32/x
  3. Step 3: Cross multiply
    739,890.05x = 1,021,000.04 × 417,556.32
  4. Step 4: Simplify right side
    739,890.05x = 426,325,015,071.56
  5. Step 5: Solve for x
    x = 426,325,015,071.56/739,890.05
  6. Step 6: Final answer
    x = 576,200.50

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.