Home / 426,822.30-638,851.05-302,406.30

Finding the Fourth Proportional to 426,822.30, 638,851.05 and 302,406.30

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Solution

The fourth proportional to 426,822.30, 638,851.05 and 302,406.30 is: 452,630.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,822.30 : 638,851.05 = 302,406.30 : x
  2. Step 2: Convert to fraction form
    426,822.30/638,851.05 = 302,406.30/x
  3. Step 3: Cross multiply
    426,822.30x = 638,851.05 × 302,406.30
  4. Step 4: Simplify right side
    426,822.30x = 193,192,582,281.62
  5. Step 5: Solve for x
    x = 193,192,582,281.62/426,822.30
  6. Step 6: Final answer
    x = 452,630.01

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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.