Home / 994,764.74-1,490,890.80-425,469.20

Finding the Fourth Proportional to 994,764.74, 1,490,890.80 and 425,469.20

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Solution

The fourth proportional to 994,764.74, 1,490,890.80 and 425,469.20 is: 637,666.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,764.74 : 1,490,890.80 = 425,469.20 : x
  2. Step 2: Convert to fraction form
    994,764.74/1,490,890.80 = 425,469.20/x
  3. Step 3: Cross multiply
    994,764.74x = 1,490,890.80 × 425,469.20
  4. Step 4: Simplify right side
    994,764.74x = 634,328,115,963.36
  5. Step 5: Solve for x
    x = 634,328,115,963.36/994,764.74
  6. Step 6: Final answer
    x = 637,666.47

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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.