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Finding the Fourth Proportional to 484,601.31, 668,635.56 and 407,370.65

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Solution

The fourth proportional to 484,601.31, 668,635.56 and 407,370.65 is: 562,075.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,601.31 : 668,635.56 = 407,370.65 : x
  2. Step 2: Convert to fraction form
    484,601.31/668,635.56 = 407,370.65/x
  3. Step 3: Cross multiply
    484,601.31x = 668,635.56 × 407,370.65
  4. Step 4: Simplify right side
    484,601.31x = 272,382,499,347.14
  5. Step 5: Solve for x
    x = 272,382,499,347.14/484,601.31
  6. Step 6: Final answer
    x = 562,075.45

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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.