Home / 778,402.88-1,074,200.64-492,051.68

Finding the Fourth Proportional to 778,402.88, 1,074,200.64 and 492,051.68

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Solution

The fourth proportional to 778,402.88, 1,074,200.64 and 492,051.68 is: 679,034.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,402.88 : 1,074,200.64 = 492,051.68 : x
  2. Step 2: Convert to fraction form
    778,402.88/1,074,200.64 = 492,051.68/x
  3. Step 3: Cross multiply
    778,402.88x = 1,074,200.64 × 492,051.68
  4. Step 4: Simplify right side
    778,402.88x = 528,562,229,569.08
  5. Step 5: Solve for x
    x = 528,562,229,569.08/778,402.88
  6. Step 6: Final answer
    x = 679,034.27

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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.