Home / 401,835.54-602,753.28-313,155.40

Finding the Fourth Proportional to 401,835.54, 602,753.28 and 313,155.40

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Solution

The fourth proportional to 401,835.54, 602,753.28 and 313,155.40 is: 469,733.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,835.54 : 602,753.28 = 313,155.40 : x
  2. Step 2: Convert to fraction form
    401,835.54/602,753.28 = 313,155.40/x
  3. Step 3: Cross multiply
    401,835.54x = 602,753.28 × 313,155.40
  4. Step 4: Simplify right side
    401,835.54x = 188,755,444,499.71
  5. Step 5: Solve for x
    x = 188,755,444,499.71/401,835.54
  6. Step 6: Final answer
    x = 469,733.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.