Home / 558,726.72-771,124.15-313,738.98

Finding the Fourth Proportional to 558,726.72, 771,124.15 and 313,738.98

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Solution

The fourth proportional to 558,726.72, 771,124.15 and 313,738.98 is: 433,005.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,726.72 : 771,124.15 = 313,738.98 : x
  2. Step 2: Convert to fraction form
    558,726.72/771,124.15 = 313,738.98/x
  3. Step 3: Cross multiply
    558,726.72x = 771,124.15 × 313,738.98
  4. Step 4: Simplify right side
    558,726.72x = 241,931,704,274.37
  5. Step 5: Solve for x
    x = 241,931,704,274.37/558,726.72
  6. Step 6: Final answer
    x = 433,005.43

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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.