Home / 400,775.04-553,064.36-228,688.52

Finding the Fourth Proportional to 400,775.04, 553,064.36 and 228,688.52

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Solution

The fourth proportional to 400,775.04, 553,064.36 and 228,688.52 is: 315,587.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,775.04 : 553,064.36 = 228,688.52 : x
  2. Step 2: Convert to fraction form
    400,775.04/553,064.36 = 228,688.52/x
  3. Step 3: Cross multiply
    400,775.04x = 553,064.36 × 228,688.52
  4. Step 4: Simplify right side
    400,775.04x = 126,479,466,044.38
  5. Step 5: Solve for x
    x = 126,479,466,044.38/400,775.04
  6. Step 6: Final answer
    x = 315,587.18

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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.