Home / 813,164.48-1,219,526.40-339,750.80

Finding the Fourth Proportional to 813,164.48, 1,219,526.40 and 339,750.80

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Solution

The fourth proportional to 813,164.48, 1,219,526.40 and 339,750.80 is: 509,534.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,164.48 : 1,219,526.40 = 339,750.80 : x
  2. Step 2: Convert to fraction form
    813,164.48/1,219,526.40 = 339,750.80/x
  3. Step 3: Cross multiply
    813,164.48x = 1,219,526.40 × 339,750.80
  4. Step 4: Simplify right side
    813,164.48x = 414,335,070,021.12
  5. Step 5: Solve for x
    x = 414,335,070,021.12/813,164.48
  6. Step 6: Final answer
    x = 509,534.15

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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.