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Finding the Fourth Proportional to 555,224.32, 766,211.28 and 300,574.90

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Solution

The fourth proportional to 555,224.32, 766,211.28 and 300,574.90 is: 414,794.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,224.32 : 766,211.28 = 300,574.90 : x
  2. Step 2: Convert to fraction form
    555,224.32/766,211.28 = 300,574.90/x
  3. Step 3: Cross multiply
    555,224.32x = 766,211.28 × 300,574.90
  4. Step 4: Simplify right side
    555,224.32x = 230,303,875,033.82
  5. Step 5: Solve for x
    x = 230,303,875,033.82/555,224.32
  6. Step 6: Final answer
    x = 414,794.29

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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.