Home / 426,837.06-636,365.30-415,931.22

Finding the Fourth Proportional to 426,837.06, 636,365.30 and 415,931.22

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Solution

The fourth proportional to 426,837.06, 636,365.30 and 415,931.22 is: 620,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,837.06 : 636,365.30 = 415,931.22 : x
  2. Step 2: Convert to fraction form
    426,837.06/636,365.30 = 415,931.22/x
  3. Step 3: Cross multiply
    426,837.06x = 636,365.30 × 415,931.22
  4. Step 4: Simplify right side
    426,837.06x = 264,684,193,515.01
  5. Step 5: Solve for x
    x = 264,684,193,515.01/426,837.06
  6. Step 6: Final answer
    x = 620,105.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.