Home / 991,239.32-1,367,977.95-561,522.98

Finding the Fourth Proportional to 991,239.32, 1,367,977.95 and 561,522.98

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Solution

The fourth proportional to 991,239.32, 1,367,977.95 and 561,522.98 is: 774,940.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,239.32 : 1,367,977.95 = 561,522.98 : x
  2. Step 2: Convert to fraction form
    991,239.32/1,367,977.95 = 561,522.98/x
  3. Step 3: Cross multiply
    991,239.32x = 1,367,977.95 × 561,522.98
  4. Step 4: Simplify right side
    991,239.32x = 768,151,058,478.24
  5. Step 5: Solve for x
    x = 768,151,058,478.24/991,239.32
  6. Step 6: Final answer
    x = 774,940.06

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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.