Home / 723,588.42-998,611.80-401,402.40

Finding the Fourth Proportional to 723,588.42, 998,611.80 and 401,402.40

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Solution

The fourth proportional to 723,588.42, 998,611.80 and 401,402.40 is: 553,968.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,588.42 : 998,611.80 = 401,402.40 : x
  2. Step 2: Convert to fraction form
    723,588.42/998,611.80 = 401,402.40/x
  3. Step 3: Cross multiply
    723,588.42x = 998,611.80 × 401,402.40
  4. Step 4: Simplify right side
    723,588.42x = 400,845,173,188.32
  5. Step 5: Solve for x
    x = 400,845,173,188.32/723,588.42
  6. Step 6: Final answer
    x = 553,968.47

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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.