Home / 970,137.78-1,338,703.29-540,408.69

Finding the Fourth Proportional to 970,137.78, 1,338,703.29 and 540,408.69

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Solution

The fourth proportional to 970,137.78, 1,338,703.29 and 540,408.69 is: 745,715.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,137.78 : 1,338,703.29 = 540,408.69 : x
  2. Step 2: Convert to fraction form
    970,137.78/1,338,703.29 = 540,408.69/x
  3. Step 3: Cross multiply
    970,137.78x = 1,338,703.29 × 540,408.69
  4. Step 4: Simplify right side
    970,137.78x = 723,446,891,247.59
  5. Step 5: Solve for x
    x = 723,446,891,247.59/970,137.78
  6. Step 6: Final answer
    x = 745,715.62

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Double scale
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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.