Home / 839,453.62-1,158,412.19-457,472.20

Finding the Fourth Proportional to 839,453.62, 1,158,412.19 and 457,472.20

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Solution

The fourth proportional to 839,453.62, 1,158,412.19 and 457,472.20 is: 631,293.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,453.62 : 1,158,412.19 = 457,472.20 : x
  2. Step 2: Convert to fraction form
    839,453.62/1,158,412.19 = 457,472.20/x
  3. Step 3: Cross multiply
    839,453.62x = 1,158,412.19 × 457,472.20
  4. Step 4: Simplify right side
    839,453.62x = 529,941,371,313.77
  5. Step 5: Solve for x
    x = 529,941,371,313.77/839,453.62
  6. Step 6: Final answer
    x = 631,293.21

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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.