Home / 747,243-1,031,194.74-407,711.25

Finding the Fourth Proportional to 747,243, 1,031,194.74 and 407,711.25

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Solution

The fourth proportional to 747,243, 1,031,194.74 and 407,711.25 is: 562,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,243 : 1,031,194.74 = 407,711.25 : x
  2. Step 2: Convert to fraction form
    747,243/1,031,194.74 = 407,711.25/x
  3. Step 3: Cross multiply
    747,243x = 1,031,194.74 × 407,711.25
  4. Step 4: Simplify right side
    747,243x = 420,429,696,438.83
  5. Step 5: Solve for x
    x = 420,429,696,438.83/747,243
  6. Step 6: Final answer
    x = 562,641.20

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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.