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Finding the Fourth Proportional to 698,292.48, 963,612.87 and 407,930.93

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Solution

The fourth proportional to 698,292.48, 963,612.87 and 407,930.93 is: 562,926.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,292.48 : 963,612.87 = 407,930.93 : x
  2. Step 2: Convert to fraction form
    698,292.48/963,612.87 = 407,930.93/x
  3. Step 3: Cross multiply
    698,292.48x = 963,612.87 × 407,930.93
  4. Step 4: Simplify right side
    698,292.48x = 393,087,494,219.07
  5. Step 5: Solve for x
    x = 393,087,494,219.07/698,292.48
  6. Step 6: Final answer
    x = 562,926.72

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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.