Home / 970,143.53-1,338,838.41-540,423.54

Finding the Fourth Proportional to 970,143.53, 1,338,838.41 and 540,423.54

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Solution

The fourth proportional to 970,143.53, 1,338,838.41 and 540,423.54 is: 745,806.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,143.53 : 1,338,838.41 = 540,423.54 : x
  2. Step 2: Convert to fraction form
    970,143.53/1,338,838.41 = 540,423.54/x
  3. Step 3: Cross multiply
    970,143.53x = 1,338,838.41 × 540,423.54
  4. Step 4: Simplify right side
    970,143.53x = 723,539,793,020.17
  5. Step 5: Solve for x
    x = 723,539,793,020.17/970,143.53
  6. Step 6: Final answer
    x = 745,806.96

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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.