Home / 879,124.90-1,318,687.35-826,636.90

Finding the Fourth Proportional to 879,124.90, 1,318,687.35 and 826,636.90

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Solution

The fourth proportional to 879,124.90, 1,318,687.35 and 826,636.90 is: 1,239,955.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,124.90 : 1,318,687.35 = 826,636.90 : x
  2. Step 2: Convert to fraction form
    879,124.90/1,318,687.35 = 826,636.90/x
  3. Step 3: Cross multiply
    879,124.90x = 1,318,687.35 × 826,636.90
  4. Step 4: Simplify right side
    879,124.90x = 1,090,075,623,073.22
  5. Step 5: Solve for x
    x = 1,090,075,623,073.22/879,124.90
  6. Step 6: Final answer
    x = 1,239,955.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.