Home / 762,243.12-1,051,819.64-440,057.20

Finding the Fourth Proportional to 762,243.12, 1,051,819.64 and 440,057.20

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Solution

The fourth proportional to 762,243.12, 1,051,819.64 and 440,057.20 is: 607,235.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,243.12 : 1,051,819.64 = 440,057.20 : x
  2. Step 2: Convert to fraction form
    762,243.12/1,051,819.64 = 440,057.20/x
  3. Step 3: Cross multiply
    762,243.12x = 1,051,819.64 × 440,057.20
  4. Step 4: Simplify right side
    762,243.12x = 462,860,805,683.41
  5. Step 5: Solve for x
    x = 462,860,805,683.41/762,243.12
  6. Step 6: Final answer
    x = 607,235.14

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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.