Home / 808,271.06-1,115,421.64-445,707.92

Finding the Fourth Proportional to 808,271.06, 1,115,421.64 and 445,707.92

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Solution

The fourth proportional to 808,271.06, 1,115,421.64 and 445,707.92 is: 615,081.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,271.06 : 1,115,421.64 = 445,707.92 : x
  2. Step 2: Convert to fraction form
    808,271.06/1,115,421.64 = 445,707.92/x
  3. Step 3: Cross multiply
    808,271.06x = 1,115,421.64 × 445,707.92
  4. Step 4: Simplify right side
    808,271.06x = 497,152,254,487.43
  5. Step 5: Solve for x
    x = 497,152,254,487.43/808,271.06
  6. Step 6: Final answer
    x = 615,081.11

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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.