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Finding the Fourth Proportional to 720,529.29, 994,189.14 and 434,065.10

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Solution

The fourth proportional to 720,529.29, 994,189.14 and 434,065.10 is: 598,924.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,529.29 : 994,189.14 = 434,065.10 : x
  2. Step 2: Convert to fraction form
    720,529.29/994,189.14 = 434,065.10/x
  3. Step 3: Cross multiply
    720,529.29x = 994,189.14 × 434,065.10
  4. Step 4: Simplify right side
    720,529.29x = 431,542,803,502.07
  5. Step 5: Solve for x
    x = 431,542,803,502.07/720,529.29
  6. Step 6: Final answer
    x = 598,924.72

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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.