Home / 540,039.12-745,260.24-298,316.70

Finding the Fourth Proportional to 540,039.12, 745,260.24 and 298,316.70

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Solution

The fourth proportional to 540,039.12, 745,260.24 and 298,316.70 is: 411,680.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,039.12 : 745,260.24 = 298,316.70 : x
  2. Step 2: Convert to fraction form
    540,039.12/745,260.24 = 298,316.70/x
  3. Step 3: Cross multiply
    540,039.12x = 745,260.24 × 298,316.70
  4. Step 4: Simplify right side
    540,039.12x = 222,323,575,438.01
  5. Step 5: Solve for x
    x = 222,323,575,438.01/540,039.12
  6. Step 6: Final answer
    x = 411,680.50

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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.