Home / 808,362.79-1,115,525.11-445,820.16

Finding the Fourth Proportional to 808,362.79, 1,115,525.11 and 445,820.16

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Solution

The fourth proportional to 808,362.79, 1,115,525.11 and 445,820.16 is: 615,223.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,362.79 : 1,115,525.11 = 445,820.16 : x
  2. Step 2: Convert to fraction form
    808,362.79/1,115,525.11 = 445,820.16/x
  3. Step 3: Cross multiply
    808,362.79x = 1,115,525.11 × 445,820.16
  4. Step 4: Simplify right side
    808,362.79x = 497,323,583,024.22
  5. Step 5: Solve for x
    x = 497,323,583,024.22/808,362.79
  6. Step 6: Final answer
    x = 615,223.25

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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.