Home / 861,434.90-1,188,461.30-860,106.32

Finding the Fourth Proportional to 861,434.90, 1,188,461.30 and 860,106.32

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Solution

The fourth proportional to 861,434.90, 1,188,461.30 and 860,106.32 is: 1,186,628.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,434.90 : 1,188,461.30 = 860,106.32 : x
  2. Step 2: Convert to fraction form
    861,434.90/1,188,461.30 = 860,106.32/x
  3. Step 3: Cross multiply
    861,434.90x = 1,188,461.30 × 860,106.32
  4. Step 4: Simplify right side
    861,434.90x = 1,022,203,075,205.42
  5. Step 5: Solve for x
    x = 1,022,203,075,205.42/861,434.90
  6. Step 6: Final answer
    x = 1,186,628.35

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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.