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Finding the Fourth Proportional to 476,535.79, 657,621.18 and 258,744.79

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Solution

The fourth proportional to 476,535.79, 657,621.18 and 258,744.79 is: 357,068.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,535.79 : 657,621.18 = 258,744.79 : x
  2. Step 2: Convert to fraction form
    476,535.79/657,621.18 = 258,744.79/x
  3. Step 3: Cross multiply
    476,535.79x = 657,621.18 × 258,744.79
  4. Step 4: Simplify right side
    476,535.79x = 170,156,054,118.65
  5. Step 5: Solve for x
    x = 170,156,054,118.65/476,535.79
  6. Step 6: Final answer
    x = 357,068.78

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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.