Home / 970,141.53-1,338,835.64-540,421.54

Finding the Fourth Proportional to 970,141.53, 1,338,835.64 and 540,421.54

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Solution

The fourth proportional to 970,141.53, 1,338,835.64 and 540,421.54 is: 745,804.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,141.53 : 1,338,835.64 = 540,421.54 : x
  2. Step 2: Convert to fraction form
    970,141.53/1,338,835.64 = 540,421.54/x
  3. Step 3: Cross multiply
    970,141.53x = 1,338,835.64 × 540,421.54
  4. Step 4: Simplify right side
    970,141.53x = 723,535,618,375.69
  5. Step 5: Solve for x
    x = 723,535,618,375.69/970,141.53
  6. Step 6: Final answer
    x = 745,804.19

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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.