Home / 778,845.52-1,074,860.80-434,748.40

Finding the Fourth Proportional to 778,845.52, 1,074,860.80 and 434,748.40

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Solution

The fourth proportional to 778,845.52, 1,074,860.80 and 434,748.40 is: 599,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,845.52 : 1,074,860.80 = 434,748.40 : x
  2. Step 2: Convert to fraction form
    778,845.52/1,074,860.80 = 434,748.40/x
  3. Step 3: Cross multiply
    778,845.52x = 1,074,860.80 × 434,748.40
  4. Step 4: Simplify right side
    778,845.52x = 467,294,013,022.72
  5. Step 5: Solve for x
    x = 467,294,013,022.72/778,845.52
  6. Step 6: Final answer
    x = 599,982.92

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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.