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Finding the Fourth Proportional to 724,287.51, 999,700.70 and 494,937.63

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Solution

The fourth proportional to 724,287.51, 999,700.70 and 494,937.63 is: 683,139.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,287.51 : 999,700.70 = 494,937.63 : x
  2. Step 2: Convert to fraction form
    724,287.51/999,700.70 = 494,937.63/x
  3. Step 3: Cross multiply
    724,287.51x = 999,700.70 × 494,937.63
  4. Step 4: Simplify right side
    724,287.51x = 494,789,492,692.65
  5. Step 5: Solve for x
    x = 494,789,492,692.65/724,287.51
  6. Step 6: Final answer
    x = 683,139.62

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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.