Home / 894,531-1,234,452.78-492,114.36

Finding the Fourth Proportional to 894,531, 1,234,452.78 and 492,114.36

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Solution

The fourth proportional to 894,531, 1,234,452.78 and 492,114.36 is: 679,117.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,531 : 1,234,452.78 = 492,114.36 : x
  2. Step 2: Convert to fraction form
    894,531/1,234,452.78 = 492,114.36/x
  3. Step 3: Cross multiply
    894,531x = 1,234,452.78 × 492,114.36
  4. Step 4: Simplify right side
    894,531x = 607,491,939,779.92
  5. Step 5: Solve for x
    x = 607,491,939,779.92/894,531
  6. Step 6: Final answer
    x = 679,117.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.