Home / 723,588.49-998,611.95-401,402.65

Finding the Fourth Proportional to 723,588.49, 998,611.95 and 401,402.65

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Solution

The fourth proportional to 723,588.49, 998,611.95 and 401,402.65 is: 553,968.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,588.49 : 998,611.95 = 401,402.65 : x
  2. Step 2: Convert to fraction form
    723,588.49/998,611.95 = 401,402.65/x
  3. Step 3: Cross multiply
    723,588.49x = 998,611.95 × 401,402.65
  4. Step 4: Simplify right side
    723,588.49x = 400,845,483,051.67
  5. Step 5: Solve for x
    x = 400,845,483,051.67/723,588.49
  6. Step 6: Final answer
    x = 553,968.85

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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.