Home / 692,442.80-1,038,664.20-664,794.80

Finding the Fourth Proportional to 692,442.80, 1,038,664.20 and 664,794.80

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Solution

The fourth proportional to 692,442.80, 1,038,664.20 and 664,794.80 is: 997,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,442.80 : 1,038,664.20 = 664,794.80 : x
  2. Step 2: Convert to fraction form
    692,442.80/1,038,664.20 = 664,794.80/x
  3. Step 3: Cross multiply
    692,442.80x = 1,038,664.20 × 664,794.80
  4. Step 4: Simplify right side
    692,442.80x = 690,498,559,106.16
  5. Step 5: Solve for x
    x = 690,498,559,106.16/692,442.80
  6. Step 6: Final answer
    x = 997,192.20

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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.