Home / 664,031.80-916,271.46-377,520.22

Finding the Fourth Proportional to 664,031.80, 916,271.46 and 377,520.22

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Solution

The fourth proportional to 664,031.80, 916,271.46 and 377,520.22 is: 520,925.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,031.80 : 916,271.46 = 377,520.22 : x
  2. Step 2: Convert to fraction form
    664,031.80/916,271.46 = 377,520.22/x
  3. Step 3: Cross multiply
    664,031.80x = 916,271.46 × 377,520.22
  4. Step 4: Simplify right side
    664,031.80x = 345,911,003,158.92
  5. Step 5: Solve for x
    x = 345,911,003,158.92/664,031.80
  6. Step 6: Final answer
    x = 520,925.36

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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.