Home / 745,580.76-1,028,930.58-423,320.85

Finding the Fourth Proportional to 745,580.76, 1,028,930.58 and 423,320.85

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Solution

The fourth proportional to 745,580.76, 1,028,930.58 and 423,320.85 is: 584,199.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,580.76 : 1,028,930.58 = 423,320.85 : x
  2. Step 2: Convert to fraction form
    745,580.76/1,028,930.58 = 423,320.85/x
  3. Step 3: Cross multiply
    745,580.76x = 1,028,930.58 × 423,320.85
  4. Step 4: Simplify right side
    745,580.76x = 435,567,762,571.94
  5. Step 5: Solve for x
    x = 435,567,762,571.94/745,580.76
  6. Step 6: Final answer
    x = 584,199.31

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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.