Home / 615,745.05-849,742.59-343,803.75

Finding the Fourth Proportional to 615,745.05, 849,742.59 and 343,803.75

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Solution

The fourth proportional to 615,745.05, 849,742.59 and 343,803.75 is: 474,457.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,745.05 : 849,742.59 = 343,803.75 : x
  2. Step 2: Convert to fraction form
    615,745.05/849,742.59 = 343,803.75/x
  3. Step 3: Cross multiply
    615,745.05x = 849,742.59 × 343,803.75
  4. Step 4: Simplify right side
    615,745.05x = 292,144,688,976.71
  5. Step 5: Solve for x
    x = 292,144,688,976.71/615,745.05
  6. Step 6: Final answer
    x = 474,457.23

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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.