Home / 742,740.17-1,025,006.00-420,443.60

Finding the Fourth Proportional to 742,740.17, 1,025,006.00 and 420,443.60

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Solution

The fourth proportional to 742,740.17, 1,025,006.00 and 420,443.60 is: 580,226.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,740.17 : 1,025,006.00 = 420,443.60 : x
  2. Step 2: Convert to fraction form
    742,740.17/1,025,006.00 = 420,443.60/x
  3. Step 3: Cross multiply
    742,740.17x = 1,025,006.00 × 420,443.60
  4. Step 4: Simplify right side
    742,740.17x = 430,957,205,434.35
  5. Step 5: Solve for x
    x = 430,957,205,434.35/742,740.17
  6. Step 6: Final answer
    x = 580,226.07

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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.