Home / 727,384.64-1,003,711.20-421,467.08

Finding the Fourth Proportional to 727,384.64, 1,003,711.20 and 421,467.08

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Solution

The fourth proportional to 727,384.64, 1,003,711.20 and 421,467.08 is: 581,578.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,384.64 : 1,003,711.20 = 421,467.08 : x
  2. Step 2: Convert to fraction form
    727,384.64/1,003,711.20 = 421,467.08/x
  3. Step 3: Cross multiply
    727,384.64x = 1,003,711.20 × 421,467.08
  4. Step 4: Simplify right side
    727,384.64x = 423,031,228,627.30
  5. Step 5: Solve for x
    x = 423,031,228,627.30/727,384.64
  6. Step 6: Final answer
    x = 581,578.45

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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.