Home / 763,388.52-1,145,399.76-384,106.74

Finding the Fourth Proportional to 763,388.52, 1,145,399.76 and 384,106.74

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Solution

The fourth proportional to 763,388.52, 1,145,399.76 and 384,106.74 is: 576,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,388.52 : 1,145,399.76 = 384,106.74 : x
  2. Step 2: Convert to fraction form
    763,388.52/1,145,399.76 = 384,106.74/x
  3. Step 3: Cross multiply
    763,388.52x = 1,145,399.76 × 384,106.74
  4. Step 4: Simplify right side
    763,388.52x = 439,955,767,810.38
  5. Step 5: Solve for x
    x = 439,955,767,810.38/763,388.52
  6. Step 6: Final answer
    x = 576,319.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.