Home / 808,316.55-1,115,484.75-445,753.26

Finding the Fourth Proportional to 808,316.55, 1,115,484.75 and 445,753.26

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Solution

The fourth proportional to 808,316.55, 1,115,484.75 and 445,753.26 is: 615,143.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,316.55 : 1,115,484.75 = 445,753.26 : x
  2. Step 2: Convert to fraction form
    808,316.55/1,115,484.75 = 445,753.26/x
  3. Step 3: Cross multiply
    808,316.55x = 1,115,484.75 × 445,753.26
  4. Step 4: Simplify right side
    808,316.55x = 497,230,963,792.79
  5. Step 5: Solve for x
    x = 497,230,963,792.79/808,316.55
  6. Step 6: Final answer
    x = 615,143.86

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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.