Home / 784,148.08-1,082,109.72-439,990.24

Finding the Fourth Proportional to 784,148.08, 1,082,109.72 and 439,990.24

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Solution

The fourth proportional to 784,148.08, 1,082,109.72 and 439,990.24 is: 607,178.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,148.08 : 1,082,109.72 = 439,990.24 : x
  2. Step 2: Convert to fraction form
    784,148.08/1,082,109.72 = 439,990.24/x
  3. Step 3: Cross multiply
    784,148.08x = 1,082,109.72 × 439,990.24
  4. Step 4: Simplify right side
    784,148.08x = 476,117,715,409.13
  5. Step 5: Solve for x
    x = 476,117,715,409.13/784,148.08
  6. Step 6: Final answer
    x = 607,178.32

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Double scale
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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.