Home / 426,030.07-638,559.17-266,179.50

Finding the Fourth Proportional to 426,030.07, 638,559.17 and 266,179.50

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Solution

The fourth proportional to 426,030.07, 638,559.17 and 266,179.50 is: 398,965.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,030.07 : 638,559.17 = 266,179.50 : x
  2. Step 2: Convert to fraction form
    426,030.07/638,559.17 = 266,179.50/x
  3. Step 3: Cross multiply
    426,030.07x = 638,559.17 × 266,179.50
  4. Step 4: Simplify right side
    426,030.07x = 169,971,360,591.02
  5. Step 5: Solve for x
    x = 169,971,360,591.02/426,030.07
  6. Step 6: Final answer
    x = 398,965.64

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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.