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Finding the Fourth Proportional to 540,459.34, 745,820.76 and 298,735.70

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Solution

The fourth proportional to 540,459.34, 745,820.76 and 298,735.70 is: 412,248.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,459.34 : 745,820.76 = 298,735.70 : x
  2. Step 2: Convert to fraction form
    540,459.34/745,820.76 = 298,735.70/x
  3. Step 3: Cross multiply
    540,459.34x = 745,820.76 × 298,735.70
  4. Step 4: Simplify right side
    540,459.34x = 222,803,284,204.29
  5. Step 5: Solve for x
    x = 222,803,284,204.29/540,459.34
  6. Step 6: Final answer
    x = 412,248.01

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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.