Home / 778,345.98-1,074,071.14-451,633.69

Finding the Fourth Proportional to 778,345.98, 1,074,071.14 and 451,633.69

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Solution

The fourth proportional to 778,345.98, 1,074,071.14 and 451,633.69 is: 623,227.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,345.98 : 1,074,071.14 = 451,633.69 : x
  2. Step 2: Convert to fraction form
    778,345.98/1,074,071.14 = 451,633.69/x
  3. Step 3: Cross multiply
    778,345.98x = 1,074,071.14 × 451,633.69
  4. Step 4: Simplify right side
    778,345.98x = 485,086,712,494.21
  5. Step 5: Solve for x
    x = 485,086,712,494.21/778,345.98
  6. Step 6: Final answer
    x = 623,227.62

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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.