Home / 970,140.03-1,338,833.57-540,420.04

Finding the Fourth Proportional to 970,140.03, 1,338,833.57 and 540,420.04

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Solution

The fourth proportional to 970,140.03, 1,338,833.57 and 540,420.04 is: 745,802.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,140.03 : 1,338,833.57 = 540,420.04 : x
  2. Step 2: Convert to fraction form
    970,140.03/1,338,833.57 = 540,420.04/x
  3. Step 3: Cross multiply
    970,140.03x = 1,338,833.57 × 540,420.04
  4. Step 4: Simplify right side
    970,140.03x = 723,532,491,452.74
  5. Step 5: Solve for x
    x = 723,532,491,452.74/970,140.03
  6. Step 6: Final answer
    x = 745,802.12

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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.