Home / 540,025.40-745,220.61-298,302.77

Finding the Fourth Proportional to 540,025.40, 745,220.61 and 298,302.77

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Solution

The fourth proportional to 540,025.40, 745,220.61 and 298,302.77 is: 411,649.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,025.40 : 745,220.61 = 298,302.77 : x
  2. Step 2: Convert to fraction form
    540,025.40/745,220.61 = 298,302.77/x
  3. Step 3: Cross multiply
    540,025.40x = 745,220.61 × 298,302.77
  4. Step 4: Simplify right side
    540,025.40x = 222,301,372,224.09
  5. Step 5: Solve for x
    x = 222,301,372,224.09/540,025.40
  6. Step 6: Final answer
    x = 411,649.85

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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.