Home / 778,841.51-1,074,855.27-434,744.40

Finding the Fourth Proportional to 778,841.51, 1,074,855.27 and 434,744.40

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Solution

The fourth proportional to 778,841.51, 1,074,855.27 and 434,744.40 is: 599,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,841.51 : 1,074,855.27 = 434,744.40 : x
  2. Step 2: Convert to fraction form
    778,841.51/1,074,855.27 = 434,744.40/x
  3. Step 3: Cross multiply
    778,841.51x = 1,074,855.27 × 434,744.40
  4. Step 4: Simplify right side
    778,841.51x = 467,287,309,442.99
  5. Step 5: Solve for x
    x = 467,287,309,442.99/778,841.51
  6. Step 6: Final answer
    x = 599,977.41

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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.