Home / 936,428.80-1,404,837.60-305,390.20

Finding the Fourth Proportional to 936,428.80, 1,404,837.60 and 305,390.20

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Solution

The fourth proportional to 936,428.80, 1,404,837.60 and 305,390.20 is: 458,148.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,428.80 : 1,404,837.60 = 305,390.20 : x
  2. Step 2: Convert to fraction form
    936,428.80/1,404,837.60 = 305,390.20/x
  3. Step 3: Cross multiply
    936,428.80x = 1,404,837.60 × 305,390.20
  4. Step 4: Simplify right side
    936,428.80x = 429,023,635,631.52
  5. Step 5: Solve for x
    x = 429,023,635,631.52/936,428.80
  6. Step 6: Final answer
    x = 458,148.70

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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.