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Finding the Fourth Proportional to 723,683.45, 998,802.74 and 401,497.35

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Solution

The fourth proportional to 723,683.45, 998,802.74 and 401,497.35 is: 554,132.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,683.45 : 998,802.74 = 401,497.35 : x
  2. Step 2: Convert to fraction form
    723,683.45/998,802.74 = 401,497.35/x
  3. Step 3: Cross multiply
    723,683.45x = 998,802.74 × 401,497.35
  4. Step 4: Simplify right side
    723,683.45x = 401,016,651,275.25
  5. Step 5: Solve for x
    x = 401,016,651,275.25/723,683.45
  6. Step 6: Final answer
    x = 554,132.68

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1.5x scale

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.