Home / 763,719.18-1,053,904.41-424,209.30

Finding the Fourth Proportional to 763,719.18, 1,053,904.41 and 424,209.30

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Solution

The fourth proportional to 763,719.18, 1,053,904.41 and 424,209.30 is: 585,393.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,719.18 : 1,053,904.41 = 424,209.30 : x
  2. Step 2: Convert to fraction form
    763,719.18/1,053,904.41 = 424,209.30/x
  3. Step 3: Cross multiply
    763,719.18x = 1,053,904.41 × 424,209.30
  4. Step 4: Simplify right side
    763,719.18x = 447,076,052,033.01
  5. Step 5: Solve for x
    x = 447,076,052,033.01/763,719.18
  6. Step 6: Final answer
    x = 585,393.25

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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.