Home / 788,290.86-1,087,841.32-425,714.68

Finding the Fourth Proportional to 788,290.86, 1,087,841.32 and 425,714.68

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Solution

The fourth proportional to 788,290.86, 1,087,841.32 and 425,714.68 is: 587,486.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,290.86 : 1,087,841.32 = 425,714.68 : x
  2. Step 2: Convert to fraction form
    788,290.86/1,087,841.32 = 425,714.68/x
  3. Step 3: Cross multiply
    788,290.86x = 1,087,841.32 × 425,714.68
  4. Step 4: Simplify right side
    788,290.86x = 463,110,019,730.09
  5. Step 5: Solve for x
    x = 463,110,019,730.09/788,290.86
  6. Step 6: Final answer
    x = 587,486.22

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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.