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Finding the Fourth Proportional to 839,673.88, 1,158,750.02 and 457,700.65

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Solution

The fourth proportional to 839,673.88, 1,158,750.02 and 457,700.65 is: 631,626.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,673.88 : 1,158,750.02 = 457,700.65 : x
  2. Step 2: Convert to fraction form
    839,673.88/1,158,750.02 = 457,700.65/x
  3. Step 3: Cross multiply
    839,673.88x = 1,158,750.02 × 457,700.65
  4. Step 4: Simplify right side
    839,673.88x = 530,360,635,588.89
  5. Step 5: Solve for x
    x = 530,360,635,588.89/839,673.88
  6. Step 6: Final answer
    x = 631,626.93

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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.