Home / 723,412.69-998,307.79-401,114.50

Finding the Fourth Proportional to 723,412.69, 998,307.79 and 401,114.50

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Solution

The fourth proportional to 723,412.69, 998,307.79 and 401,114.50 is: 553,537.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,412.69 : 998,307.79 = 401,114.50 : x
  2. Step 2: Convert to fraction form
    723,412.69/998,307.79 = 401,114.50/x
  3. Step 3: Cross multiply
    723,412.69x = 998,307.79 × 401,114.50
  4. Step 4: Simplify right side
    723,412.69x = 400,435,730,031.96
  5. Step 5: Solve for x
    x = 400,435,730,031.96/723,412.69
  6. Step 6: Final answer
    x = 553,537.06

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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.