Home / 540,121.07-745,374.89-298,409.21

Finding the Fourth Proportional to 540,121.07, 745,374.89 and 298,409.21

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Solution

The fourth proportional to 540,121.07, 745,374.89 and 298,409.21 is: 411,809.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,121.07 : 745,374.89 = 298,409.21 : x
  2. Step 2: Convert to fraction form
    540,121.07/745,374.89 = 298,409.21/x
  3. Step 3: Cross multiply
    540,121.07x = 745,374.89 × 298,409.21
  4. Step 4: Simplify right side
    540,121.07x = 222,426,732,450.13
  5. Step 5: Solve for x
    x = 222,426,732,450.13/540,121.07
  6. Step 6: Final answer
    x = 411,809.03

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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.