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Finding the Fourth Proportional to 724,271.72, 999,678.71 and 494,921.84

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Solution

The fourth proportional to 724,271.72, 999,678.71 and 494,921.84 is: 683,117.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,271.72 : 999,678.71 = 494,921.84 : x
  2. Step 2: Convert to fraction form
    724,271.72/999,678.71 = 494,921.84/x
  3. Step 3: Cross multiply
    724,271.72x = 999,678.71 × 494,921.84
  4. Step 4: Simplify right side
    724,271.72x = 494,762,826,586.61
  5. Step 5: Solve for x
    x = 494,762,826,586.61/724,271.72
  6. Step 6: Final answer
    x = 683,117.69

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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.