Home / 842,429.79-1,162,423.20-479,807.42

Finding the Fourth Proportional to 842,429.79, 1,162,423.20 and 479,807.42

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Solution

The fourth proportional to 842,429.79, 1,162,423.20 and 479,807.42 is: 662,060.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,429.79 : 1,162,423.20 = 479,807.42 : x
  2. Step 2: Convert to fraction form
    842,429.79/1,162,423.20 = 479,807.42/x
  3. Step 3: Cross multiply
    842,429.79x = 1,162,423.20 × 479,807.42
  4. Step 4: Simplify right side
    842,429.79x = 557,739,270,728.03
  5. Step 5: Solve for x
    x = 557,739,270,728.03/842,429.79
  6. Step 6: Final answer
    x = 662,060.25

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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.