Home / 763,638.28-1,053,823.28-424,106.52

Finding the Fourth Proportional to 763,638.28, 1,053,823.28 and 424,106.52

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Solution

The fourth proportional to 763,638.28, 1,053,823.28 and 424,106.52 is: 585,268.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,638.28 : 1,053,823.28 = 424,106.52 : x
  2. Step 2: Convert to fraction form
    763,638.28/1,053,823.28 = 424,106.52/x
  3. Step 3: Cross multiply
    763,638.28x = 1,053,823.28 × 424,106.52
  4. Step 4: Simplify right side
    763,638.28x = 446,933,323,975.79
  5. Step 5: Solve for x
    x = 446,933,323,975.79/763,638.28
  6. Step 6: Final answer
    x = 585,268.36

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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.