Home / 778,186.89-1,074,397.59-488,195.94

Finding the Fourth Proportional to 778,186.89, 1,074,397.59 and 488,195.94

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Solution

The fourth proportional to 778,186.89, 1,074,397.59 and 488,195.94 is: 674,023.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,186.89 : 1,074,397.59 = 488,195.94 : x
  2. Step 2: Convert to fraction form
    778,186.89/1,074,397.59 = 488,195.94/x
  3. Step 3: Cross multiply
    778,186.89x = 1,074,397.59 × 488,195.94
  4. Step 4: Simplify right side
    778,186.89x = 524,516,541,383.79
  5. Step 5: Solve for x
    x = 524,516,541,383.79/778,186.89
  6. Step 6: Final answer
    x = 674,023.87

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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.