Home / 762,155.72-1,051,699.10-439,969.62

Finding the Fourth Proportional to 762,155.72, 1,051,699.10 and 439,969.62

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Solution

The fourth proportional to 762,155.72, 1,051,699.10 and 439,969.62 is: 607,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,155.72 : 1,051,699.10 = 439,969.62 : x
  2. Step 2: Convert to fraction form
    762,155.72/1,051,699.10 = 439,969.62/x
  3. Step 3: Cross multiply
    762,155.72x = 1,051,699.10 × 439,969.62
  4. Step 4: Simplify right side
    762,155.72x = 462,715,651,181.49
  5. Step 5: Solve for x
    x = 462,715,651,181.49/762,155.72
  6. Step 6: Final answer
    x = 607,114.32

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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.