Home / 742,912.02-1,025,212.95-403,382.70

Finding the Fourth Proportional to 742,912.02, 1,025,212.95 and 403,382.70

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Solution

The fourth proportional to 742,912.02, 1,025,212.95 and 403,382.70 is: 556,665.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,912.02 : 1,025,212.95 = 403,382.70 : x
  2. Step 2: Convert to fraction form
    742,912.02/1,025,212.95 = 403,382.70/x
  3. Step 3: Cross multiply
    742,912.02x = 1,025,212.95 × 403,382.70
  4. Step 4: Simplify right side
    742,912.02x = 413,553,167,845.97
  5. Step 5: Solve for x
    x = 413,553,167,845.97/742,912.02
  6. Step 6: Final answer
    x = 556,665.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.