Home / 1,049,619.20-1,574,428.80-339,670.40

Finding the Fourth Proportional to 1,049,619.20, 1,574,428.80 and 339,670.40

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Solution

The fourth proportional to 1,049,619.20, 1,574,428.80 and 339,670.40 is: 509,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,619.20 : 1,574,428.80 = 339,670.40 : x
  2. Step 2: Convert to fraction form
    1,049,619.20/1,574,428.80 = 339,670.40/x
  3. Step 3: Cross multiply
    1,049,619.20x = 1,574,428.80 × 339,670.40
  4. Step 4: Simplify right side
    1,049,619.20x = 534,786,860,267.52
  5. Step 5: Solve for x
    x = 534,786,860,267.52/1,049,619.20
  6. Step 6: Final answer
    x = 509,505.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.