Home / 839,463.80-1,158,460.90-457,490.88

Finding the Fourth Proportional to 839,463.80, 1,158,460.90 and 457,490.88

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Solution

The fourth proportional to 839,463.80, 1,158,460.90 and 457,490.88 is: 631,337.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,463.80 : 1,158,460.90 = 457,490.88 : x
  2. Step 2: Convert to fraction form
    839,463.80/1,158,460.90 = 457,490.88/x
  3. Step 3: Cross multiply
    839,463.80x = 1,158,460.90 × 457,490.88
  4. Step 4: Simplify right side
    839,463.80x = 529,985,296,586.59
  5. Step 5: Solve for x
    x = 529,985,296,586.59/839,463.80
  6. Step 6: Final answer
    x = 631,337.88

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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.