Home / 489,045.20-733,567.80-423,435.20

Finding the Fourth Proportional to 489,045.20, 733,567.80 and 423,435.20

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Solution

The fourth proportional to 489,045.20, 733,567.80 and 423,435.20 is: 635,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,045.20 : 733,567.80 = 423,435.20 : x
  2. Step 2: Convert to fraction form
    489,045.20/733,567.80 = 423,435.20/x
  3. Step 3: Cross multiply
    489,045.20x = 733,567.80 × 423,435.20
  4. Step 4: Simplify right side
    489,045.20x = 310,618,428,106.56
  5. Step 5: Solve for x
    x = 310,618,428,106.56/489,045.20
  6. Step 6: Final answer
    x = 635,152.80

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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.