Home / 808,567.40-1,115,803.46-445,983.47

Finding the Fourth Proportional to 808,567.40, 1,115,803.46 and 445,983.47

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Solution

The fourth proportional to 808,567.40, 1,115,803.46 and 445,983.47 is: 615,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,567.40 : 1,115,803.46 = 445,983.47 : x
  2. Step 2: Convert to fraction form
    808,567.40/1,115,803.46 = 445,983.47/x
  3. Step 3: Cross multiply
    808,567.40x = 1,115,803.46 × 445,983.47
  4. Step 4: Simplify right side
    808,567.40x = 497,629,891,119.87
  5. Step 5: Solve for x
    x = 497,629,891,119.87/808,567.40
  6. Step 6: Final answer
    x = 615,446.40

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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.