Home / 723,905.52-999,109.54-401,719.12

Finding the Fourth Proportional to 723,905.52, 999,109.54 and 401,719.12

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Solution

The fourth proportional to 723,905.52, 999,109.54 and 401,719.12 is: 554,438.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,905.52 : 999,109.54 = 401,719.12 : x
  2. Step 2: Convert to fraction form
    723,905.52/999,109.54 = 401,719.12/x
  3. Step 3: Cross multiply
    723,905.52x = 999,109.54 × 401,719.12
  4. Step 4: Simplify right side
    723,905.52x = 401,361,405,192.41
  5. Step 5: Solve for x
    x = 401,361,405,192.41/723,905.52
  6. Step 6: Final answer
    x = 554,438.93

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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.