Home / 746,015.76-1,119,354.42-390,945.38

Finding the Fourth Proportional to 746,015.76, 1,119,354.42 and 390,945.38

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Solution

The fourth proportional to 746,015.76, 1,119,354.42 and 390,945.38 is: 586,591.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,015.76 : 1,119,354.42 = 390,945.38 : x
  2. Step 2: Convert to fraction form
    746,015.76/1,119,354.42 = 390,945.38/x
  3. Step 3: Cross multiply
    746,015.76x = 1,119,354.42 × 390,945.38
  4. Step 4: Simplify right side
    746,015.76x = 437,606,433,484.81
  5. Step 5: Solve for x
    x = 437,606,433,484.81/746,015.76
  6. Step 6: Final answer
    x = 586,591.41

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Double scale
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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.