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Finding the Fourth Proportional to 540,809.62, 746,417.12 and 347,459.03

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Solution

The fourth proportional to 540,809.62, 746,417.12 and 347,459.03 is: 479,557.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,809.62 : 746,417.12 = 347,459.03 : x
  2. Step 2: Convert to fraction form
    540,809.62/746,417.12 = 347,459.03/x
  3. Step 3: Cross multiply
    540,809.62x = 746,417.12 × 347,459.03
  4. Step 4: Simplify right side
    540,809.62x = 259,349,368,619.34
  5. Step 5: Solve for x
    x = 259,349,368,619.34/540,809.62
  6. Step 6: Final answer
    x = 479,557.61

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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.