Home / 740,521.04-1,021,923.92-400,989.28

Finding the Fourth Proportional to 740,521.04, 1,021,923.92 and 400,989.28

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Solution

The fourth proportional to 740,521.04, 1,021,923.92 and 400,989.28 is: 553,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,521.04 : 1,021,923.92 = 400,989.28 : x
  2. Step 2: Convert to fraction form
    740,521.04/1,021,923.92 = 400,989.28/x
  3. Step 3: Cross multiply
    740,521.04x = 1,021,923.92 × 400,989.28
  4. Step 4: Simplify right side
    740,521.04x = 409,780,536,895.58
  5. Step 5: Solve for x
    x = 409,780,536,895.58/740,521.04
  6. Step 6: Final answer
    x = 553,367.85

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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.