Home / 770,872.31-1,063,790.90-426,700.86

Finding the Fourth Proportional to 770,872.31, 1,063,790.90 and 426,700.86

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Solution

The fourth proportional to 770,872.31, 1,063,790.90 and 426,700.86 is: 588,840.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,872.31 : 1,063,790.90 = 426,700.86 : x
  2. Step 2: Convert to fraction form
    770,872.31/1,063,790.90 = 426,700.86/x
  3. Step 3: Cross multiply
    770,872.31x = 1,063,790.90 × 426,700.86
  4. Step 4: Simplify right side
    770,872.31x = 453,920,488,967.71
  5. Step 5: Solve for x
    x = 453,920,488,967.71/770,872.31
  6. Step 6: Final answer
    x = 588,840.05

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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.