Home / 839,417.12-1,158,361.92-457,435.76

Finding the Fourth Proportional to 839,417.12, 1,158,361.92 and 457,435.76

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Solution

The fourth proportional to 839,417.12, 1,158,361.92 and 457,435.76 is: 631,242.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,417.12 : 1,158,361.92 = 457,435.76 : x
  2. Step 2: Convert to fraction form
    839,417.12/1,158,361.92 = 457,435.76/x
  3. Step 3: Cross multiply
    839,417.12x = 1,158,361.92 × 457,435.76
  4. Step 4: Simplify right side
    839,417.12x = 529,876,165,230.26
  5. Step 5: Solve for x
    x = 529,876,165,230.26/839,417.12
  6. Step 6: Final answer
    x = 631,242.98

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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.