Home / 1,223,200.80-1,834,801.20-424,216.80

Finding the Fourth Proportional to 1,223,200.80, 1,834,801.20 and 424,216.80

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Solution

The fourth proportional to 1,223,200.80, 1,834,801.20 and 424,216.80 is: 636,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,200.80 : 1,834,801.20 = 424,216.80 : x
  2. Step 2: Convert to fraction form
    1,223,200.80/1,834,801.20 = 424,216.80/x
  3. Step 3: Cross multiply
    1,223,200.80x = 1,834,801.20 × 424,216.80
  4. Step 4: Simplify right side
    1,223,200.80x = 778,353,493,700.16
  5. Step 5: Solve for x
    x = 778,353,493,700.16/1,223,200.80
  6. Step 6: Final answer
    x = 636,325.20

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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.