Home / 987,362.60-1,479,923.88-453,780.80

Finding the Fourth Proportional to 987,362.60, 1,479,923.88 and 453,780.80

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Solution

The fourth proportional to 987,362.60, 1,479,923.88 and 453,780.80 is: 680,156.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,362.60 : 1,479,923.88 = 453,780.80 : x
  2. Step 2: Convert to fraction form
    987,362.60/1,479,923.88 = 453,780.80/x
  3. Step 3: Cross multiply
    987,362.60x = 1,479,923.88 × 453,780.80
  4. Step 4: Simplify right side
    987,362.60x = 671,561,042,205.50
  5. Step 5: Solve for x
    x = 671,561,042,205.50/987,362.60
  6. Step 6: Final answer
    x = 680,156.45

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1.5x scale

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.