Home / 938,714.93-1,408,247.55-426,416.05

Finding the Fourth Proportional to 938,714.93, 1,408,247.55 and 426,416.05

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Solution

The fourth proportional to 938,714.93, 1,408,247.55 and 426,416.05 is: 639,703.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,714.93 : 1,408,247.55 = 426,416.05 : x
  2. Step 2: Convert to fraction form
    938,714.93/1,408,247.55 = 426,416.05/x
  3. Step 3: Cross multiply
    938,714.93x = 1,408,247.55 × 426,416.05
  4. Step 4: Simplify right side
    938,714.93x = 600,499,357,693.18
  5. Step 5: Solve for x
    x = 600,499,357,693.18/938,714.93
  6. Step 6: Final answer
    x = 639,703.64

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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.