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Finding the Fourth Proportional to 545,284.80, 752,510.96 and 300,295.68

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Solution

The fourth proportional to 545,284.80, 752,510.96 and 300,295.68 is: 414,417.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,284.80 : 752,510.96 = 300,295.68 : x
  2. Step 2: Convert to fraction form
    545,284.80/752,510.96 = 300,295.68/x
  3. Step 3: Cross multiply
    545,284.80x = 752,510.96 × 300,295.68
  4. Step 4: Simplify right side
    545,284.80x = 225,975,790,440.65
  5. Step 5: Solve for x
    x = 225,975,790,440.65/545,284.80
  6. Step 6: Final answer
    x = 414,417.92

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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.