Home / 970,140.53-1,338,834.26-540,420.54

Finding the Fourth Proportional to 970,140.53, 1,338,834.26 and 540,420.54

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Solution

The fourth proportional to 970,140.53, 1,338,834.26 and 540,420.54 is: 745,802.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,140.53 : 1,338,834.26 = 540,420.54 : x
  2. Step 2: Convert to fraction form
    970,140.53/1,338,834.26 = 540,420.54/x
  3. Step 3: Cross multiply
    970,140.53x = 1,338,834.26 × 540,420.54
  4. Step 4: Simplify right side
    970,140.53x = 723,533,533,759.70
  5. Step 5: Solve for x
    x = 723,533,533,759.70/970,140.53
  6. Step 6: Final answer
    x = 745,802.81

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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.