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Finding the Fourth Proportional to 698,291.48, 963,611.49 and 407,929.93

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Solution

The fourth proportional to 698,291.48, 963,611.49 and 407,929.93 is: 562,925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,291.48 : 963,611.49 = 407,929.93 : x
  2. Step 2: Convert to fraction form
    698,291.48/963,611.49 = 407,929.93/x
  3. Step 3: Cross multiply
    698,291.48x = 963,611.49 × 407,929.93
  4. Step 4: Simplify right side
    698,291.48x = 393,085,965,166.54
  5. Step 5: Solve for x
    x = 393,085,965,166.54/698,291.48
  6. Step 6: Final answer
    x = 562,925.33

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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.