Home / 910,356.89-1,365,098.81-430,185.02

Finding the Fourth Proportional to 910,356.89, 1,365,098.81 and 430,185.02

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Solution

The fourth proportional to 910,356.89, 1,365,098.81 and 430,185.02 is: 645,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,356.89 : 1,365,098.81 = 430,185.02 : x
  2. Step 2: Convert to fraction form
    910,356.89/1,365,098.81 = 430,185.02/x
  3. Step 3: Cross multiply
    910,356.89x = 1,365,098.81 × 430,185.02
  4. Step 4: Simplify right side
    910,356.89x = 587,245,049,905.41
  5. Step 5: Solve for x
    x = 587,245,049,905.41/910,356.89
  6. Step 6: Final answer
    x = 645,071.25

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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.