Home / 563,740.28-777,955.66-309,090.84

Finding the Fourth Proportional to 563,740.28, 777,955.66 and 309,090.84

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Solution

The fourth proportional to 563,740.28, 777,955.66 and 309,090.84 is: 426,542.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,740.28 : 777,955.66 = 309,090.84 : x
  2. Step 2: Convert to fraction form
    563,740.28/777,955.66 = 309,090.84/x
  3. Step 3: Cross multiply
    563,740.28x = 777,955.66 × 309,090.84
  4. Step 4: Simplify right side
    563,740.28x = 240,458,968,432.15
  5. Step 5: Solve for x
    x = 240,458,968,432.15/563,740.28
  6. Step 6: Final answer
    x = 426,542.11

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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.