Home / 426,152.20-638,645.10-283,592.20

Finding the Fourth Proportional to 426,152.20, 638,645.10 and 283,592.20

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Solution

The fourth proportional to 426,152.20, 638,645.10 and 283,592.20 is: 425,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,152.20 : 638,645.10 = 283,592.20 : x
  2. Step 2: Convert to fraction form
    426,152.20/638,645.10 = 283,592.20/x
  3. Step 3: Cross multiply
    426,152.20x = 638,645.10 × 283,592.20
  4. Step 4: Simplify right side
    426,152.20x = 181,114,768,928.22
  5. Step 5: Solve for x
    x = 181,114,768,928.22/426,152.20
  6. Step 6: Final answer
    x = 425,000.20

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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.