Home / 778,747.52-1,074,670.08-439,214.72

Finding the Fourth Proportional to 778,747.52, 1,074,670.08 and 439,214.72

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Solution

The fourth proportional to 778,747.52, 1,074,670.08 and 439,214.72 is: 606,115.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,747.52 : 1,074,670.08 = 439,214.72 : x
  2. Step 2: Convert to fraction form
    778,747.52/1,074,670.08 = 439,214.72/x
  3. Step 3: Cross multiply
    778,747.52x = 1,074,670.08 × 439,214.72
  4. Step 4: Simplify right side
    778,747.52x = 472,010,918,279.58
  5. Step 5: Solve for x
    x = 472,010,918,279.58/778,747.52
  6. Step 6: Final answer
    x = 606,115.47

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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.